Is this my Fault? - Flooded PC Repair Part 1

[@charleykellogg9927]

Im sorry for your loss

[@alicetheteddybear217]

fr

[@Rmm1722]

😢 right

[@Pr0toPoTaT0]

Right. But it is his fault this happened to the computers.......... somehow.

[@whollymindless]

losses.

[@LeePrzy]

@@Pr0toPoTaT0dude his sister

[@RobertPanechetta]

Mechanic here! I heard you say FUEL lines. Some fuel lines use STEEL bands to reinforce them. My theory is some of the water was in contact to the fibers in the fuel line UNDER the worm clamp since it prob stretched and exposed the steel in the hose Edit: Alot of people keep saying fuel lines with steel reinforced fibers arent a thing. They are very much a thing but not common on non german vehicles. It is also pretty uncommon to use now a days BUT last time i checked they are half the price as fiber reinforced in autoparts stores. The lines used for the 1 corroded rig look different from the other 4 units.

[@jakobfindlay4136]

this needs more likes so its seen

[@1nicube]

he even showed the steel braid. Thats a good point buddy! I skipped that! i think you are into something.

[@RobertPanechetta]

@alaskandonut Im not sure exactly what fuel lines hes using but there are metal and non metal reinforced fuel line. His look to be metal reinforced.

[@KeijonAutoVuokra]

Was my first thought too, this could also explain the inconsistency

[@jothain]

​@@1nicubeI'm watching with phone,but to me they looked fiber reinforced.

[@MrJimodoom]

Linus son is ridiculously chilled out. Loved the interaction "how'd you get to be so sarcastic"... "bad parenting I guess"... killed me

[@YuProducciones]

😂I love that answer from him

[@audiokrak9598]

I wouldn't say that just seems like your normal teen who wanted to help hoping to be quick to get back to gaming with his friends lol

[@ku8721]

YOU DAD!!! I LEARNED IT FROM WATCHING YOU!!! Btw used that line on my mom when she asked where I learned to be such a smarta$$

[@sinformant]

​@@audiokrak9598nailed it! My teenage sons are the same way. I got them a car we need to fix up to get going. They just want it fixed but don't wanna do anything themselves. I let them know i already dumped the money into parts, if they want it fixed, they help. If I fix it by myself then I'm either driving it or selling it to get my money back.

[@sinformant]

​@@ku8721as a 40 year old, that psa has been burned deep into my mind🤣

[@darschpugs4690]

Sorry for your lose man, my dad just passed away yesterday. we never know when we will lose someone, anyone that reads this, call your family members and talk to them, never let yourself fall out of touch with them.

[@rustyshackleford6913]

thanks taking this as a sign

[@athiccsadist]

im too far into the video thought you were speaking for his server condolences

[@darschpugs4690]

@@athiccsadist Thanks.

[@zebra1327]

Yeah, I can relate. My dad passed away before we were able to talk, or rather, before I was able to maybe reconcile. Call your friends and family members, try to talk out differences if that's what tore you apart from each other and try to reconcile or clear things up.

[@rm25088]

Yeah I just lost my grandmother. Shit is hard. Cherish the moments.

[@TrashPanda-z9x]

Linus, I am so sorry for your family’s loss. I have my Master’s in Chemical Engineering. You reference galvanic corrosion, but there are different “types” of corrosion and I think there could be multiple possible causes. 1. “Pitting Corrosion”- Minute imperfections in the zinc coating could have caused localized potential differences which over time became significantly worse. The zinc coating should passivate the brass, but after enough small-scale pitting corrosion, you might see the brass of the fitting involved in the corrosion. The rate and degree of corrosion strongly suggest this type. 2. “Crevice Corrosion”- This could be the corrosion taking place in the GPU block where the corrosion appears to be happening with the non-metal parts of the GPU block. If even a small amount of fluid became trapped (like under a gasket or in very sharp corners), it could induce this type of corrosion. This type of corrosion is slower than pitting, so I do not think this is the root cause, but should still be mentioned. 3. “Selective Corrosion/Leaking”- Potential differences, the driving force behind corrosion, can develop on the same piece of metal/object; you do not need to have two different metals. Essentially, the zinc-coated brass fitting(s) corroded itself. If possible, send the corroded fittings to EK or someone else to have the metal content analyzed. If you’d like to talk further about these, let me know. I have contacts in the material science field who might be able to assist.

[@kevinpark1]

I was thinking because he had used steel reinforced fuel line that could be the other metal that caused corrosion

[@kakashi99908]

Are people just ignoring the fact he used a biocide? Even low concentrations of a biocide like PT Nuke can accelerate failure of the plating. PT Nuke is very commonly used in PC loops so I am assuming that is what Linus used. Things will start turning brown/flake off. Never use PT Nuke with nickel plating.

[@photography_night_school]

What do you think about iodide induced corrosion? Plausible?

[@fredfinks]

@@kakashi99908 what biocide are you supposed to use then? ive avoided water cooling due to all the possibilities of failure, but in my proposed setup i was considering in the past, i was going to use distilled water and maaybe add some colloidal silver? forgotten. does that cause problems? isopropyl alcohol destroys rubber, cant think at moment. man, water cooling just seems to be a major pain in the butt

[@Shadowninja1200]

@@fredfinks It is. That's why most people says not to do it unless you really want a quiet system or looking for extra performance when overlocking. I'm planning on building a custom desk in the near future (figured it's better than buying a new pc case) and it's still going to be air cooled.

[@washellwash1802]

Benefit of being Linus' son: cool stuff in the house Drawback of being Linus' son: if the cool stuff breaks, it takes forever to fix

[@hgycfcfyfcgcyfy3152]

Bro how could u say that when his sister passed

[@TheShinyShrimp]

i saw his discord friend list in the video hehehe

[@TheShizzlemop]

@@hgycfcfyfcgcyfy3152 what does that have to do with this? this is a reference to linus's personality, not the circumstance.

[@SpaceDust_97]

@@TheShizzlemop Exactly...what a weird decision of hgycfcfyfcgcyfy3152 to comment. Just another one of millions upon millions of internet trolls, I suppose.

[@Pbenter]

Jank life

[@erdem--]

Electrical engineer here, There must be a ground loop from the pump and server. Even 5-10 volt difference can make it. In the case of pulling thousands of watts from servers, I guarrentee you there was a 10-20 volt difference between neutral wires of the pump and server rack. You need to isolate the pump with 1:1 isolation transformer. And add a sacrificial anode to be safe

[@mreid0890]

You know your stuff!

[@1nicube]

Mechanical engineering here. I have no idea, so im pretty sure you are right. The metal are compatible. Unless there was a contamination of the metal.

[@LReBe7]

That might be a possibility, good luck confirming that now that the system has been disassembled though.

[@FIGHTTHECABLE]

Would not grounding everything just fix the issue? Bring everything to 0V, not allowing a voltage difference. Also, how is his loop set up, didn't he run it to his outside pool or something?

[@andlinux]

Indeed it has to be something like that, I was thinking of some sort of static electricity but the ground loop explanation is even better.

[@SplitRensonator]

Chemistry PHD here that has designed computer liquid cooling systems for about 30 years. Linus, I need to correct several things you said in this video. First of all, stainless steel is compatible with copper. If you want a good reference for materials in liquid cooling, check out the OpenCompute guidelines. You can google “Guideline for using water based transfer fluid in single phase cold plate based liquid cooled racks” . As you can see on page 10, stainless and copper are just fine. Next, you said at the beginning you ONLY use copper and brass, but nearly every wetted material you showed us was silver colored. Copper is red and brass is yellow. That means you have metals in your system that you didn't anticipate. What it looked like to me is that your copper (or brass) fittings are coated with another metal. It's either chromium or nickel most likely, both of which are compatible with liquid cooling systems (see above Opencompute spec). What likely happened is that the coatings are bad or were damaged, exposing the copper and/or brass to the coolant. But you might think...copper and brass should be fine right?? It depends. Does your coolant have a copper corrosion inhibitor in it like tolyltriazole? Is the brass >15% zinc? The brass question is really important, since high zinc brass will undergo galvanic corrosion with copper in the system (zinc-copper couple) that results in dezincification of the brass and failure of the material over time. That's maybe what happened here, i.e. bad nickel plating on your high zinc brass caused dezincification and failure of the pipe as the zinc was removed, leaving a copper sponge with no real mechanical integrity. This is a lesson for everyone out there...coated metals don't necessarily work, it depends on the quality of the chromium or nickel coat. There are other reasons this could have happened, but this seems like the most likely scenario.

[@DrigrX]

He mentioned nickel as well, so probably nickel coating

[@gravesclay]

This is likely the case. The corrosion product looked like zinc powder to me.

[@Noswiatel]

It doesn't really explain why the corrosion were local, does it?

[@GunniBusch1]

Maybe iodine mentioned in 3:56 could also react with nickel.

[@AshleyRosemarry]

Another prime example that you NEVER know what is happing to the people you see online, or on the street. They might be showing a smile, but they might be literally dying inside, emotionally and/or physically speaking. Always be kind to others And so sorry for you loss Linus. Honestly, you should consider taking a break if needed. Your mental is worth more than the company.

[@chrisjames7803]

he had the PERFECT oppertunity to,, instead he chose to make a video about him and his son, instead of grieving..

[@hamhamhamham.]

@@chrisjames7803 It's almost like people grieve in their own ways, including keeping oneself busy with work...

[@williamkarlberg2097]

content

[@iwatobi0127]

@@chrisjames7803 probably a way of coping the loss. Linus is a good man.

[@halfbak3d]

this video was only a couple days out of the time since his sister passed. It was also something he was doing for himself, but turned it into a video, again was only a couple days of recording.... At the beginning of the video you can tell his mind was still heavy and hadn't grieved yet, but his face shows that he has healed some by the end of it.

[@davidknightx]

"I'm the kind of person who honors his promises, so I'm not promising anything." Yeah, I'm stealing that line.

[@pacomatic9833]

@@klaxoncow Thanks for that, def using it

[@noodlelynoodle.]

Banks really don't like when you can't promise them them your paycheck will be in to pay off the overdue balance lol the manager called me one day after my acct had somehow overdrawn the checking even tho that shouldn't be possible with how I have it set up and was sooooo annoyed when I told him I couldn't make any promises the check would be in there on Friday, like sorry I can't control if my boss fucks up and doesn't have the checks ready which did end up happening once eventually

[@ConfusedRaccoon]

That's on par with Homer Simpsons "Well, I wont lie to you Marge... So long!"

[@camelCased]

A comedy singer in my country once said: "I have never ever promised anything and I promise to continue not ever promising anything" 😀

[@michaelnazar9358]

.

[@SanyammGandhi]

So sorry for your loss Linus. As someone blessed with a younger sister, I can't even imagine how hard it must be losing someone you grow up with, fight with, play with, but also love them the most.

[@user-white007]

I’d be a mess, hope Linus can heal one day

[@brentdavidson1492]

The rusty screws in the GPU block may be a red herring, but that's where I would start looking. My reasoning is this: I once bought an inexpensive oxy-acetylene brazing torch that was mysteriously equalizing pressure between the oxygen and acetylene lines with all handle valves off. Turns out there was a microscopic crack in the brass handle casting that was allowing the gasses to mix before the metering valves. If there was a microscopic crack in the delrin it could have been allowing water to contact the steel screws while the threads were tight enough in the holes to create seal that didn't leak. A second possibility is the fittings themselves. Those fittings looked like they were possibly copper or brass that had been plated with another metal to make them shiny. That was likely electroplating. If the fitting was dropped and there was a flaw in that plating, no matter how tiny, that allowed the water to contact the base metal, then that could have provided a source for the corrosion.

[@MattWeber]

The base metal would still be compatible, as the fittings would be nickel plated brass. As he said in the beginning that thought of non compatibility was already removed since the systems all only had compatible metals used, with compatible coolant mixture.

[@Adreitz7]

Pressure equalizing between oxygen and acetylene tanks sounds crazy scary. I'm glad you're still alive!

[@joshuaatkins5197]

@@brentdavidson1492 was kind of my thought. I use teflon tape on things that I don't want galling. I'd hope they're top quality fittings but nowadays who knows.

[@carlosdgutierrez6570]

​@@MattWeberunless there is a potential difference if somehow current were leaving into the loop because of a faulty grounding. Compatible "alloys" are only under no potential difference between them (0V), add some, even a handful of volts and then you have corrosion between "compatible" alloys.

[@HoneyTwee]

Sorry to hear about your sister Linus. ❤

[@b3as_t]

is it the sister that was in the video?

[@mastenk2030]

@@b3as_t No, the one in the video from a year ago is his younger sister. The one, who passed away (RIP🕊), was his older sister. Linus said that on WAN Show.

[@b3as_t]

@@mastenk2030 Oh, ok thanks for telling me. And do we know how she passed away?

[@zoonymy9249]

No

[@IOUaUsername]

@@b3as_t It could be anything and sometimes it's personal. My mum's cousin got a contaminated batch of saline IV in hospital and instantly got an incurable case of sepsis. Human bodies are more fragile than Linus' water cooling loop.

[@florihae]

Mechanical Engineer here. We design evaporation plants, so you guessed it, a lot of corrosion. I suspect you had an electric potential applied from external instead of chemically. A few Volts is enough to create massive corrosion. Check all the grounding, add more wherever you can. Including water lines.

[@BrackenDawson]

I came here to say this. A potential applied externally to either the mid-plate or the hose connector could cause the same corrosion as galvanic corrosion. It might only need to be applied to one part if the mid-plate or the coolant is grounded somewhere. Given only one fitting on each block corroded I would assume that is the part that had a a potential somehow. How does it all sit with the lid on?

[@rasg3000]

I was also going to post this theory. Im guessing the wáter flow created some kind of electrostatic potential or like you said an external one.

[@XTRLFX]

And the cooling blocks.

[@shibby4389]

I dealt with cathodic protection as a production operator and I was thinking a ground issue as well. With the amount of of radio signals in Linus' house I suspect the cooling liquid itself is picking up a small electric charge from radio waves and his sons system suffered corrosion due to poor grounding while the other systems have sufficient grounding.

[@edwardconwell728]

Is Linus monitoring the Relative Humidity in the room? Could condensation have formed on the outside of affected connectors and made an electrical short to the board.

[@DDryTaste]

Firstly, my sincere condolences. In regards to your system; install a level switch in your reservoir that initiates emergency shutdown and power disconnect when the level goes too low. You can get switches with a little bit of headroom for evaporation but you should top that off anyway. You can also put flex PCB leak detectors sandwiched between the systems.

[@benskev]

you can use librenms with a raspberry pi to monitor this, there's a water system thing that i setup for a mate that uses push notifications to tell the user the second that the machine is leaking, and then remote shutdown the pc the minute that water leaks ON the case, and then disconnects power on the case once the leak is detected. the other thing is that it looks like the last pc in the set of kids pcs was affected, which makes me think that the tube splitter thing is the culprit. check there for corrosion as i think that there may be some lovelies growing it in. there was an idea using unused disposable baby nappies that another mate had, where you can use a layer of nappy innerds to go between the systems and obsorb any liquids that leak - im not sure of how the mate implemented this, so maybe i need to investimagate

[@pin65371]

That is a good option. I had said a flow meter and leak detectors. I'm in the trades so I would be doing everything. Level switch, flow meter and leak detection. If one fails for any reason you've got 2 other options that will prevent disaster. It really wouldnt be that expensive either especially when you are dealing with thousands of dollars worth of equipment.

[@PilatuS23]

My PC uses a flowmeter for this. Flow goes below a certain number of liters per hour, PC's gets a shutdown command. Windows just shuts itself down like normal. I'm using a Aquacomputer Aquaero for this. Also perfect for running the fans based on watertemp, but that's not a thing in this case.

[@MakerofThingss]

I just added a separate comment, hopefully Linus sees it. He needs to look into aquarium control equipment. Water flow, temp, leak, power draw, etc. sensors. Dead simple, bullet proof, reliable.

[@guytech7310]

Probably still going to leak since the reserviors & heat exchangers are above the bottom servers. Once a line breaks its going to dump water out. Best option is to use indirect liquid cooling like data centers do.

[@streetjustice4287]

never seen a dad and his kid be the same age before all jokes aside, sorry for your loss brother

[@wizz1358]

As an EE, my bet is that there has to be a voltage differential among the grounds, high power electronics have significant enough energy losses by simply conducting through their ground cables, so maybe the ground of the pump is different than that of the system by a few volts, which may cause a current to flow between the pump and the PC with the biggest ground differential, if my theory is good, the fix may be as simply as to just have galvanic isolation by using a 1:1 transformer for the pump, that way the pump is not grounded, and if it's not grounded, it can't created galvanic currents

[@LinusTechTips]

Interesting. This seems like the most credible-sounding hypothesis so far. I'll explore this. -LS

[@RyanFennec]

Sounds quite reasonable ngl

[@stefveedub123]

Also having a sacrificial anode in the system might give you a warning before failure as you'll see the anode deteriorate before your loop components.

[@pim00246]

​​@@LinusTechTipsthis whole mess got me staying with air cooling forever. Hope you can figure out what the hell happened!

[@Drazil100]

@@LinusTechTipslet us know the results. I’m curious if this was the cause.

[@yufeipan5989]

hey linus I work at ASML San Jose and last year one water cooled door on one of our water cooled compute cabinet broke and flooded our data center. We have all coppor loops. We did so much research into it and ultimately confirmed it is some bacterial colonies sitting in some low flow area region of the door consumed the copper and corroded it through. Apparently it is a very rare kind of bacteria that can live near the lead free solder joints of the copper pipes in the door. They eat, dug, live and thrive in cavities in coppor. Not sure how they got in there but the infection was very localized and we were able to isolate the bacteria from the regoin. luckily after flushing our loops with biocide it did not happen again. My personal theory of what they eat are the organic solder paste residues from manufacturing. These aux water cooled cabinet doors were always supplied with chilled water and maybe part of it got to a comfortable temperatures for the bacteria after been heated by warm exhausts from equipments and they built a colony there.

[@mtarek2005]

would iodine be an effective biocide in this case?

[@truejim]

So, not a computer virus, a computer bacteria. 😂

[@azmah1999]

A water cooled... Door? I've never heard of it, would you mind telling me why it's necessary please? My curiosity is peaked

[@truejim]

@@azmah1999 You water-cool a door only when you plan to overclock the door.

[@ichichson4674]

but they are not that fast even if - this cooling system is only months old

[@Orcsmustcry]

Dude, I think I speak on everyones behalf when I say, we are so sorry for your loss. You did not have to share that and thank you for allowing us in.

[@liamcallahan]

Agreed. Mainly replying to keep this comment towards the top, but definitely agreed

[@tech1m502]

❤❤❤

[@Dylan_Lanckman]

🎗

[@JG-ti7id]

2nd. So sorry for your loss sir. Linus, you seem like such a great person i can only imagine your sister was as well.

[@ZenBeepBop]

Dude. tf is your problem? If linus was in it for the money the whole company would be ran very differently. And, his sisters passing is such a big part of his life and he didn't make a video about it or even talk about it for more than 10 seconds. There's no need to hate on others, be a better person.

[@MrBlakester89]

When you brought your sister on to build a pc together she seemed like the sweetest person ever. I cried hearing about your loss brother. Been watching you for a decade maybe even more and seeing you distraught broke me a little. RIP

[@JeskidoYT]

different sister i believe

[@alec1575]

​@@JeskidoYTYea, different sister. He talked abt it on wan show

[@MrBlakester89]

@@alec1575 yeah after some google i realized it wasnt the same sister. but still..

[@MrBeetsGaming]

Sorry to hear about your sister, I lost one to a drunk driver a little over a year ago. Almost lost my dad in January who is my only living parent and now I have to take care of him 24/7, which I don't mind but it keeps me from working.

[@Shmearcakes]

I hope you remember to show yourself the kindness you give others, you deserve it. Sorry for your loss.

[@Aaron48219]

I can understand this. I was my fathers caregiver for about 10 years before he passed away last September. He's lucky to have a son like you.

[@Aaron48219]

@@Shmearcakes ^This. I can't put into words how important this is, well said.

[@OrinSorinson]

don't forget to take care of yourself. it's not selfish to make sure you're doing well, especially when others depend on you.

[@Lurch-Bot]

Gonna be in the same boat with my parents soon. They saved more for retirement than most but it isn't enough with an impending economic collapse and possibly WWIII.

[@VicariousNickk]

I am so sorry for your loss Linus. I remember seeing her in one of your videos in the past and you could tell that you loved each other deeply. My condolences to you and your family

[@tradingelk6914]

I believe it's not the same sister as who appeared in a video.

[@Fran-kc2gu]

It's not the same sister, the one on the videos is the youngest and the one that passed its the oldest

[@VicariousNickk]

@@tradingelk6914 thank you for the clarification. Still a devastating loss for him I am sure. R.I.P.

[@PX.60]

@@VicariousNickk might wanna change your comment

[@xlieon]

Nah, hes okay. I was wondering the same thing. Take care.

[@gutoespacial]

Love that... "Can we just fix it and dont care about what happened" thats the old linus words coming from his son its poetry

[@hypernova128]

Also this was gold: "...are you just going to leave it behind on the field?" "yeah."

[@imglidinhere]

Dude, like... that's a sign that the kiddo needs a lesson in patience.

[@frizo21]

Yes, the script writers did a decent job with this video.

[@Lurch-Bot]

I would have said, 'can we ditch this ridiculous liquid cooling nonsense? I'd be fine with suffering the 2dB increase in noise!'. Linus making his son's gaming PC a 2U rack server is just silly. Build a normal gaming PC and stick it in his room. He wants to play Fortnite and Minecraft, not have his dad embarrass him in front of the whole world on YT by showing that he spent $20k on a custom shared loop setup for numerous machines and completely botched the job. Poor kid just lost his aunt, and now this🤦‍♂ Great way to ensure they get bullied in school. Linus can send them to expensive schools but they're gonna be treated like a charity case by kids whose parents could buy a dozen LMGs. That was my experience when I attended boarding school in the UK. I got bullied by kids who bought their way in with bribes and didn't even meet the entrance requirements. I had to earn the right to be there, not to mention my parent scraping together enough money to pay tuition rates similar to Harvard University at the time. New money is more distasteful to the upper crust than no money. At least my dad had a respectable job as a project lead with a Fortune 500 automotive engineering firm. Linus' kids have to tell their peers, "yeah, my dad is a social media w**re.".

[@meredithwheat6430]

@@Lurch-Bot dude what is up with this projection, sucks for you but chill out

[@herbs3897]

I'm sorry for your loss Linus... I wish you and your family much strength that you get through these difficult times .

[@tsbrownie]

I was taught in materials science about self-galvanic corrosion in metals with different material phases. That's a fancy way of saying there are inconsistencies in the alloy which produce localized galvanic corrosion within the single part. It's a defect in the part, not much you can do about it. Personally I'd go with marine brass or stainless fittings. I also use an anti-corrosion compound on joints (bolts, screws, etc.) Note that iodine is active and corrosive. It does not conduct electricity well, BUT because it is reactive, it can form compounds that do leading to the galvanic corrosion.

[@chezpoof_]

I am currently majoring in materials science and that statement is accurate, iodine is corrosive

[@bobbygetsbanned6049]

Man I think you're right. Copper and stainless are not compatible, but the copper would corrode not the stainless. Iodine also corrodes stainless so that likely contributed to the self galvanic corrosion. There's no reason for them to include stainless in the loop, it's just begging for problems, use brass fittings and then they don't have to worry about the stainless and brass being electrically isolated and worrying about chemicals that might corrode one or the other.

[@thekwoka4707]

But two fittings on the same machine?

[@jacobcarlson4010]

That would be an idea, if not for the fact that there were 4 other systems on that exact loop that were all corrosion-free.

[@cickeith9579]

So would that mean a compounding effect of the defect and iodine, to explain why it only affected one system. but to that point though, would that mean both blocks had the defect, or the defect of the upper one cascading to the next in line before "filtering out"?

[@courtney-rw8ch]

So sorry. I can’t imagine what you’re going through.❤

[@infigg606]

Fr

[@williamk52]

It really is tough being rich and being able to just replace all of it

[@TheRealEclipse1]

@@williamk52 ...it's not about the equipment. He lost his actual sister. I don't think he made a video about it, but he has quietly mentioned it. To keep everything light and fun for the videos.

[@MattiaPette]

@@williamk52 you still have time to delete this... despicable

[@courtney-rw8ch]

@@MattiaPette don’t respond. I just reported it. Harassment.

[@emranurrahman1359]

Sorry to hear about your loss Linus. It's never easy to continue on with life after someone passes especially a sibling who you think you'll grow old together with. With expectations of many more meaningful lifelong memories to be made. My brother passed away 2 years ago. I would like to say the pain goes away, but in all honesty it doesn't we just learn to live with the pain. We continue with our lives, remembering all the good memories we shared with him. If anything it has made me look at life with a different resolve and outlook. I just want to wish you the sincerest condolences, it's a difficult moment and it only takes time to get to grips with their passing. You'll feel the loss of your sister no longer being here, but you'll also remember every little thing about her. From every insignificant little squabble to the last hug and smile from her. Keep up the good work, I'm sure your sister was and is proud of your accomplishments. You have been an inspiration to a generation of tech enthusiasts. Who knew network and server stuff could be fun and interesting.

[@jmm5765]

I'm sorry for your loss linus, much love to you and your family.

[@Connor_Conntroller]

13:42 Hey Linus, as you asked, inorganic chemistry major here. Even though brass and copper are generally very compatible, it could be that due to minor imperfections and similar debris/metal filings to the control loop a small electrochemical potential formed. Things like slow changes in the pH of the water, biofilm forming and temperature diffrences could be enough to accelerate this process immensely. I would check the metals under a microscope to look for impurities or attacked areas, using a multimeter to check all the isolators, check the pH, add more iodine or other desinfectant agents and lastly check the heat load of the diffrent systems. If the one has been used quite heavingly this could add to the other accelerations. Hope this could help, and i wish the issue gets resolved quickly. And my condolences for your loss of both family and tech. Edit: changed anorganic to inorganic. Even though they can be used synonymous inorganic seems to be used more often

[@Lakster37]

Just curious, what country do you live in? Haven't heard it called anorganic before.

[@Derpsii]

@@Lakster37he probably meant “an organic” lol

[@maxim_de]

@@Lakster37In Germany the distinction is organic and anorganic.

[@zippityzbrake]

do you think this could be caused by steel particles from the reinforced fuel line? worm clamps have stretched a hose while clamping, exposing the metal inside of the tubing in my experience working on cars.

[@xilix]

Oof, this is why one loop for many systems just isn't a good idea outside of industrial turn-key solutions.

[@SpiritzOfTheEmporor]

maybe watercooling servers need a catch plate between them, so if something like this happens, only one server will be completely fucked and it'll drain out in a catch plate draining into the sewer or whatever method you want to use.

[@MarcusBuer]

Or mount them vertically, with 3D printed drip trays under the waterblocks (so it doesn't leak on the motherboard and gpu in case of a failure), and a metal tray underneath all them to catch the downpour, and possible a sensor connected on his home automation system to warn him about leaks.

[@uss-dh7909]

Exactly what I was thinking. Small catch plate bewteen each server draining off into one gutter going down to a bucket with a water sensor at the bottom. Sure it takes up a rail between systems, but I'd rather give up space or add more height to the stack than suffer such a catastrophe. On the other hand, maybe you don't have to take up an entire rail. It's a thin sheet of metal so you could probably slide it between systems then have it stamped to form gutters overhanging the end. Cmon you air cooler fans, I know you're reading. :P

[@DavidMitchells]

What about upside down? A leak wouldn't involve water dripping onto the server where the leak starts, it would leak onto the 'lid'. You then figure out a way to have the lid watertight and drain to a place designed for this very occurrence?

[@youtube.administrator]

Or air cool everything

[@xmwest6814]

Like an AC coil, might also recommend somehow putting a float switch in place to kill power to the system.

[@MrJoeMeade]

Hello, Linus! I could not help but notice the "brass" appearing fittings on the reservoir tanks, sometimes in outdoor use case scenarios plumbing companies cheap out, and use less than ideal metals for making outdoor hose faucets, and that appears to be your fitting to drain the tank, also sometimes the inside nut to create the clamp for the use case scenario you have to create a water tight seal could be stainless. This was a common problem in the industry I used to work in, someone would do their own work and 6 months later the corrosion would cause a failure due to large corporations negligence in using less than ideal metals. For why it affected just one system could have a bit to do with temperature your son maybe uses his pc more than the rest with a higher workload on the cpu, causing the the loop to have more heated level and the ability to affectively steam and deposit the galvanizing corrosive metals to fall in his system specifically. Not sure this is helpful! But a small hose fitting caused a multi million dollar loss for a school all because it used the incorrect metal! Also I am terribly sorry for the loss, unexpected loss is difficult, and I hope you and your family find some peace.

[@kman1898]

The issue with this theory is none of the other systems show any signs of galvanization

[@defeqel6537]

@@kman1898 could the first system exhaust the metal in the water?

[@luminatrixfanfiction]

Keep in mind that he used his swimming pool as a reservoir. Chances are that there's all kinds of biological matter in that pool along with chlorine or salt water. The only other thing I can think of is if the server itself is leaking some voltages somewhere on the motherboard which is acting as a natural Electrolysis when in contact with the water rushing through the fittings. Electrolysis could be corroding the water block if there's voltage leakage.

[@PainCakeSoldat]

@@luminatrixfanfictionhe does not use the Pool water. He has a seperate loop under his Pool like a floor heating System.

[@Cernunn0s90]

@@luminatrixfanfiction The pool acts like a heat exchanger, pool water doesn't actually flow into his loop.

[@sisakamence]

I suggest you watch a video where you see the Chilldyne solution regarding the water cooling system: they added a vacuum system. If a tube breaks, the internal vacuum sucks the liquid. In the video you see online the server stays on while they cut the tube, the system sucks the water from the tubes, the technicians change the tube and the system starts circulating the liquid again. It' s a good idea. :)

[@jaredmassie3659]

This entire series on these PC's leaking, corroding and just not working has single handily prevented me from water-cooling my computer. Thank you Mr. TechTip man

[@walkinmn]

I do avoid water cooling too honestly, but you have to also consider he's running a huge system considering the whole server rack works as one water-cooled system and the water runs a lot of meters/yards with many possible failure points. In any big system you have to be way more careful since any variable could create a chain-reaction and more serious failures

[@Safetytrousers]

I will never not water cool my PC now. With .9 metres of rad length I run all my fans at minimum and I have a totally silent gaming PC with everything boosting to maximum. My 3090 idles at ambient.

[@singhaxes7810]

AIOs are very unlikely to fail because they’re manufactured at such a scale, but custom cooling loops are definitely an enthusiast thing only necessary for power users.

[@zerocal76]

Will always be a fan of fans [for cooling]😁

[@prince_julius]

@@singhaxes7810 AIOs can absolutely fail though, and when they do, you have to buy a new AIO and replace whatever it took with it. If a normal fan fails, no biggie.

[@smilealchemist4325]

Man I have the BIGGEST respect for you. Losing a family member, having all of your pc's/servers dumped in water. I could not push through like you did. I'am so sorry for your loss. You are awesome. Please stay like this.

[@Ervinnd]

it sucks to lose someone but he's rich I don't think he cared much about the system.

[@tkc5793]

I think you have it backawards. This was a video about some metal and plastic being damaged where he used his sisters death as an additional way to garner sympathy. Look in his eyes, this guy doesn’t actual feel anything.

[@tkc5793]

Backwards*

[@darrylgolan4806]

So sorry for your loss buddy..May you and your family be blessed with strength during this difficult time and may she RIP always.

[@AbdulKreem871]

What happened bro I don't know anything

[@moneynobaby]

@@AbdulKreem871 he is saying what happened in the intro

[@Smirnoff67]

@@AbdulKreem871 fucking watch the beginning of the video ?

[@rustickitty]

@@AbdulKreem871 his sister passed away

[@Demo12345]

First off I'm sorry to hear about your sister, my father was torn up when my aunt died many years ago so he knows exactly what you're going through. Second off for the fuel hoses on those barbed fittings usually you can take some needle nose pliers and twist the line on the fitting, if you can get the line to pop free from the fitting and twist without the line trying to move the fitting then you can twist it back and forth while pulling to get it off without needing to cut it and possibly risk damaging the fitting. I've had to learn this from many years of working on small engine equipment and having to try and avoid damaging the fuel lines that way I can re-use them and save a little bit of money.

[@austindempster5304]

First, sorry for your loss Working in the electronic field in the marine industry I’ve seen this a few times. It could be 1) a type of contaminant made its way into the system and just so happened got stuck in that part of the loop and corroded there 2) all tho brass and copper are very stable together. If one has imperfections or defects corrosion can build up in those imperfections 3) I’m not sure if you are using steel reinforced hoses but if you are the worm gear being tighter could have poked some of the fibers through the rubber into the loop. These are the most common I run across. Hope this helps

[@MrNicoJac]

Does that mean that aquariums etc also have to be _real_ careful about every pipe/connection they use, and also take extra care with different electrical grounding wires?

[@Continus]

My condolences to you and your family. And as always, fantastic video covering what happened and how to troubleshoot. Thank you!

[@XxZannexX]

Linus and water cooling has made me a forever air cooling guy

[@giga-chicken]

Seriously not worth it. If I had the resources to go putting a giant server like that in my basement, forget water cooling I'd have an intake and exhaust duct that just pipe in fresh (filtered) air from outside to the server in its own airtight box.

[@sjorsangevare]

Fr he would be better off with just a radiotor inside and outside 😂 Althought this is way cooler

[@blueshell6744]

I used to dream about watercooling one day, not anymore 😅

[@CyberbrainPC]

He's a cautionary tale, just don't do what he did and you'll be fine.

[@Tailslol]

same,after my aio dryed up and leaked a lil bit i'm forever in the air camp.

[@springbok4015]

This sent chills down my back. I just recently watched the episode on building a computer with his sister and then I see this. I’m really sorry to hear, that’s awful 🥺

[@robertbeyers1308]

My condolences to you and your family Linus. Sorry for your loss of your sister. I also want to wish you good luck on repairing the computer server problem.

[@John_1920]

08:37 I'm normally not one to comment on KZbinr's family aspects, but as someone that grew up as a kid - and still am - very curious, I honestly really like and appreciate how calmly Linus just explained all of that to his son when he was asked. This is the kind of explaining I rarely was given when I was a kid, but something I always highly appreciated as it sated my curiosity and allowed me to learn something new.

[@fastandadrift4858]

This is very true. Some parenting didn't involve as much care and patience, or willingness. I also know what it is to lack it, which makes me fond of seeing it here being better. ❤

[@robinshim9671]

I too grew up as a kid

[@jakerichter8366]

I was thinking about this too. Back when my son was his age I tried to involve him in building HIS computer, but he didn't become the nerd I was (and he's become a very good man since!). The scenes I watched in this video are almost like my younger-parent dream being realized. I would have so enjoyed a nice meaty mystery like this and investigating it in such a detailed, reasoned way with my kid. Major kudos, Linus!

[@nebukadnetzar1376]

I'm very sorry about your sister. I found my brother dead when i was 20 years old. It really hurts to lose dear people

[@FrankDeMamp]

Ok

[@sugarray_e]

@@FrankDeMamp dawg shut up

[@crappen1094]

@@FrankDeMamp shut up

[@-Waves-777]

sorry for your loss too. 😞

[@BlueKnight87]

I am so sorry to hear about your loss Linus! I hope that wasn't Bella; her infectious attitude during the video where you built her a pc was great to see. I'll keep you and the extended Sebastian family in my thoughts.

[@CornFlakesPC]

First of all, I'm so sorry for your loss! I know a guy who has a setup in his basement which is similar to this, well apart from the pool. He installed water leak detectors which as soon they come into contact with water, the pump goes off, valves close and power to the systems cuts. Maybe something Linus should do too. Would also be a good video I suppose.

[@LouJunior]

And most fancy UPS's, which he seems to have in the video, already have builtin sensors or connectors for sensors that can detect environmental hazards like water leaks, fire etc. These UPS's are also very good in alerting the end user by any medium so the solution might already be partially there.

[@CornFlakesPC]

@@LouJunior didn't know that. Thanks. TIL

[@mechitworks]

I work in designing large piping systems and protecting against galvanic corrosion. For galvanic corrosion in a piping system you need 3 things. The water has to be in contact with 2 different metals. and the metals have to be electrically connected/bonded. The amount of galvanic corrosion is based on the total area of metal that is "exposed" to water, how far the metals are apart in galvanic series and the conductivity of water. A rubber hose on itself is going to insulate the block so you won't get any transfer from that. You have to find the other path the small potential difference would go. Like the grounding of the case and the grounding of the power supply. I would focus on that for any differences between the machines. Are the power supplies the same? How it attaches to the rails? Are the machines connected with the same power cables? It could be as simple as the one system has its cable clamps touching the case, while the others don't. Then there could be an other metal object that is earthed with a different material to give/steal the ions.

[@Thesupremeone34]

so earth loops can cause corrosion? actually is it like the electroplating process? if so, does the relative nobility of the metal even matter or is the electric charge difference alone enough to migrate ions?

[@MLG_666]

It could be the brake down of the meat that is the problem and going by the flow I would change build the system above it it may not have Corrosion , but it could be where the Corrosive metal came from the first place and the one that failed took the brunt of it and that's why you only see it in one

[@Nilboggen]

@@Thesupremeone34 Earth loops can certainly cause corrosion. I think it would depend more on the electric charge difference. The different metals can be quite far apart if the galvanic potential difference is high enough.

[@Tsiikki]

Fuel lines can be semi-conductive..

[@danielypark]

I'm an EMT and I have also have trouble dealing with people passing. People may give you advise on how to handle it, but its just too personal, everyone deals with it their own way. When a "regular" patient of ours passes, we raise a glass for them. I'll do the same for your sister Emma, in memory of her.

[@GrubbHubbClips]

cheers to Emma.

[@RaphaRox]

that's wholesome, cheers to Emma

[@ghomerhust]

PROST to emma! much love to the whole fam

[@tjwatson2249]

Cheers to Emma

[@Mrbbizkit]

I’m sorry for your loss man! I remember watching you build her a gaming pc. Prayers for you and your family brother!

[@TheFarmboys]

"How did you get so sarcastic?" "I dunno, bad parenting I guess?" 😂 The apple doesn't get dropped far from the tree

[@zbunk8260]

how did you mess up that saying

[@EndriuC]

@@zbunk8260 Stuff doesn't fall from Linus, he drops them.

[@gaonsnumberonefanboy3433]

Think op meant “the apple doesn’t fall far from the tree” but we get it hah

[@DBitRun]

I was deeply saddened to hear about the passing of your Sister. Please accept my heartfelt condolences during this incredibly difficult time. My thoughts and prayers are with you and your family.

[@jimjohnson3410]

Having your son involved even when he is probably bored to tears is such a positive step. Thanks for being an awesome dad.

[@BobIzam]

I mean his other option is to play his games on his... Oh wait

[@SB-pf5rc]

i don't think linus would include his kids unless they wanted to be. which, unlike what you said, would be being an awesome dad. mom's rarely on camera even though she's cool and relatable AF. linus get that not everyone is comfortable with the lens

[@Kryzez]

How tf is that positive

[@MyAmazingUsername]

Free child labor, dude. ✌️

[@VS-mt5tz]

Yeah forcing your kids to do pointless shit they don't want to do is so positive!

[@GaryMarriott]

Hi Linus, That sort of reverse galvanic corrosion suggests an external voltage was applied such that the motherboard was raised by a sufficient voltage relative to the combined case earth. Can I suggest you may need to test all the power supplies for correct isolation & grounding.

[@pingusbingus3571]

I was thinking the same thing. if I recall, the material is deposited on the positive side were the higher voltage is, so a poorly grounded motherboard may be the culprit

[@Bogeyatyour6YT]

Some old memories of chemistry arise. The more I think about it, the more sense it makes, it is likely to be as you say.

[@OWENROTHLERNER]

Enough relative voltage makes some things galvanically corrode that wouldn't normally be known to do so. Your son probably was the biggest user of his system in the house two, highest power draw over time, tubing inductively gaining differential, etc.

[@rotary_turbo99]

also on the subject of electricity issues, this isn't the first time Linus has had weird power problems with his server rack, I cant remember the video but something killed his switch and even back then a few comments were telling him to look into it

[@sacredsock8031]

to lose close family is hard, to lose close family and still have to go to work is even harder. To do it in such a public space I cannot imagine. Condolences to you and yours Linus. Thankyou for having the balls to still film

[@YuProducciones]

exactly this .. is the first thing I thought...respect to Linus.

[@richardjgalt]

Chemist here. I would run an ICP-OES (Inductively Coupled Plasma Optical Emission spectroscopy) test on both the loop water and your tap water looking for different metal ions present in your samples. Excess iron or chromium could indicate you have stainless steel exposure in part of your loop which could contribute to galvanic corrosion. I would also check the pH of the loop to make sure you are as close to neutral (pH 7) as possible. There is also a report "Analysis of Galvanic Corrosion between a Titanium Condenser and a Copper-Nickel Piping System" by David W Taylor that suggests an increase in copper-nickel galvanic corrosion with titanium tanks in a loop. In this case I would swap out the titanium heat exchanger with a nickel plated brass one to be as close as possible to the EK blocks/fittings. Hope this helps and sorry for your loss.

[@richardjgalt]

Follow up. Based on the increase corrosion rates listed in the above report. You would be looking at about 0.004" to 0.007" of corrosion which would definitely eat through the protective nickel plating on the blocks/fittings in the ~9 months since this system was installed. After the nickel is gone I'd wager the brass would be corroded fairly quickly. If you really wanted to go deep you could check the nickel plating thickness of your loop barb fittings with TEM (transmission electron microscopy). If there is corrosion present on all fittings you likely have a global loop problem.

[@FPSG]

The fittings would need to have an electrical path back to the condenser. I'm sure they are not grounded. Brass can react with itself. Look up dezincification. Nickel can also leach zinc from brass.

[@richardjgalt]

@@FPSG In this loop the water with potassium iodide forms the electrical path between the titanium heat exchanger and the blocks/fittings. It is the presence of the two dis-similar metals (titanium/nickel) that cause a electrochemical potential leading to corrosion. An external current can also exacerbate the issue.

[@FPSG]

@@richardjgalt the fluid in the loop is the electrolyte, there absolutely needs to be a return path. The fluid cannot be the electrolyte and the electrical path.

[@imagitu6409]

@@FPSG wow, I didn't know that!

[@Chydog376]

I’m so sorry for your loss, family and your server equipment.

[@kdhmannen1337]

So sorry for your loss Linus, please take care of yourself! You are a big inspiration and a big reason to why I'm in to tech still these days. Much love.

[@RingpopSmiths]

Chemistry (from a Mechanical Engineering grad): try meticulously listing all of the metals present (or suspected to be) in contact with the water system, order the list according to the Activity Series of metals, and try to figure out if any of the metal components are near another metal component that's lower in the activity series (i.e. closer to gold). Aluminum, for example, will donate electrons to steel (iron) in a conductive fluid, creating iron ions (dissolving the iron into the water). In a conductive aqueous (water-based) solution, elements higher up in the activity series will eventually donate their electrons to any metal lower in the series. Perhaps test the conductivity of the loop water, as well and explore additives to reduce the conductivity. Or consider switching to a less conductive fluid (like propylene glycol) though it obviously may not perform as well. It may be helpful to have a lab determine the composition of the gunk that's built up, to help determine which metals deserve the closest attention, as well as to have a sample of the water tested to find out what metals are in solution in your loop. (You may also want to test the water source from whence the loop was filled, for comparison.) Best of luck, Linus! My condolences for your loss (both of family and tech).

[@CyberbrainPC]

Exactly, have to be super sure, and double check that its actually as advertised. I've seen quite a few things mislabeled. Is there an easy way to test for metal ions in the coolant with a test strip or something?

[@RingpopSmiths]

@@CyberbrainPC in theory, yes, but not just one strip, you'd have to get test strips for every suspected metal. And I don't know what the limitations would be for each strip. (For example, I don't know if the iodine would impact results.)

[@overkillthemighty]

What if there there was a grounding issue between the CPU and GPU? Could a difference in voltage cause the corrosion to happen?

[@hansdampf2776]

yo chemist person, could he have accidentally made copper iodide?

[@marekvojta9648]

The best thing to analyse ions is instrumental chemistry anything else is a professional guess

[@nemobla1]

my condolences on your loss, very sorry to hear. Remember to take time for yourself, gieving takes time and cant be rushed, do what you need to do

[@WhiteError37]

Sorry to hear about your loss my deepest condolences. I’ve had to go through it myself and it sucks.

[@Fontafonta93]

Sorry for your loss Linus. You really look like an amazing dad, your family Is really lucky to have a person like you.

[@VacMaster1991]

That's super awful, Linus. I'm sending all my condolences 🙏

[@SimultaneousDarkness]

The point of this video: Never fucking water cool. Weird shit will always happen.

[@MozzarellaBasket]

Yeah this is just a salespitch for air cooling for 15 minutes straight.

[@illudedCeption]

even my dual xeon nas is air cooled, with two dark rock TF's had to bend one a bit to make it work :D and all that in a mid tower :D

[@asdasdasd23e]

I have water cooled PC and I installed it myself for 5 years now and it is perfectly fine

[@akshatsingh9830]

when i build my pc noctua will be the boss of my case

[@trummtrummtraktikitak]

@@asdasdasd23e a water cooled pc and a huge server are quite different id say

[@Revoku]

the "burnt" look is what copper and brass can look like when its corroded. its not common in most places(most places get green corrosion), but in my town(a heavily thermal area) copper and brass turn black within weeks, its a constant struggle to keep my pc's running, I often have to remove ram sticks and pcie cards and polish the contacts with a pencil eraser because the black copper corrosion will actually come up from imperfections in the gold coating on the pins, some hard drives I have to remove the PCB from and clean the contacts on the PCB to the drive itself because HD makers don't bother coating the contacts for that in anything. also sorry for your loss.

[@Lakster37]

Do you mind if I ask in what part of the world you live? That sounds like a nightmare. Is it very humid as well?

[@rt_zen]

@@Lakster37 Curious too

[@afrowitchdr]

Never heard of the problem with corrosion you claim to have except for instances of people who live near the salty air coastal areas with vary high humidity, of which i do not. I have never had a pc corrode/oxidate at all in the many years that i have owed and used pc's, even whilst my pc was set up in my basement for several years. Sounds like a geographical or regional type of issue maybe.

[@lophilip]

If you're having problems with contact corrosion, use deoxit gold after cleaning the contacts - the oil will prevent corrosion. If the corrosion is really bad, you can coat the contacts with dielectric grease - but that's a messy solution.

[@Revoku]

​@@afrowitchdr yes, it is regional which is what I said. and I explained that is how I know what the burnt corrosion is.

[@KagedStorm]

I'm sorry for your and your family's loss. My sister passed earlier this year and can only imagine how you felt and still feel over it. Stay strong and keep your loved ones close. Thank you for your dedication 🙏

[@fantasyskeep]

Just wanna say, I have brought back an entire network system after floods here in Florida (not quite that size, but close) by simply cleaning off all the corrosion and debris, completely dried out all the components and walked away with minimal damage like dead DIMMs. These systems were entirely filled with water and submerged for about a day before they called me. About $30k worth of servers and smart switches submerged, and only about $300 in replacement parts and an industrial sized space heater. About 20 hours later, the entire system was back up and running as if nothing had changed. When in doubt, take it apart and give it a good cleaning. It may not be dead yet.

[@DK-210]

The thing about water damage is that it doesn’t always kill something right away. Just because it powers on doesn’t mean it won’t die in production. I wouldn’t trust my job with water damaged equipment.

[@dracolusus]

3/6 months, you gonna be having some fun playing whack a mole with your servers that start dying

[@teardowndan5364]

The key to anything surviving water damage is cutting power off before corrosion starts killing things. Here, Linus saying he had a dead UPS sounds like that may have cut off first and saved everything connected to it.

[@fantasyskeep]

@DK-210 That's omly partly true. Assuming you have properly removed all debris or deposits and the devices are completely dry, corrosion may never happen at all. That system has been running for 6 years since that flood. No issues.

[@fantasyskeep]

@dracolusus that was six years ago, and it's still running perfectly.

[@joyunbounded9010]

It’s strange - I don’t know Linus, but practically daily for something like five years I’ve watched him on my tv. And it’s only when hearing such genuinely sad news I realise this odd bond I’ve formed with him and this channel. I’m sincerely saddened by and sorry for your and your family’s loss. And I genuinely hope that what I imagine will be a torrent of sympathy and love coming at you from this community you and Yvonne have built over the years will , in some very small way, help ease the burden of grief you all must be carrying.

[@dwatts64]

12:00 is the best part of the video. Hearing Linus get trolled for "bad parenting" by his own son is pretty hilarious. It makes me feel better too knowing I'm not the only parent that gets trolled like that by my two daughters.

[@ppcmer]

Sorry for your loss Linus S. I lost both of my grand parents in a car accident last month and life is not easy since I grew up with them until I was 25. Much love, patience, faith and empathy to you, your family and all the LTT fam involved.

[@privacyvalued4134]

9:05 "It has seen you through many battles. Well, you just going to leave it behind on the field?" "Yeah." I don't ever want this kid watching my six.

[@alessiobartolotti318]

I am so sorry for your loss. My deepest condolences. I hope you get through these tough times as well as possible.

[@anthonysimpson5978]

Sorry for your loss i had the same with my brother last year. Wish your family all the best through this time

[@hello-b7s]

You seem like a good person. I'm so sorry for your loss. I can't even imagine. Keep your head up!

[@jitenparmar1261]

Kindness and hugs from the UK. I’m sorry for your loss. Just remember that the pain gets better every day. Keep you chin up and keep your family and friends close- we will get you through this.

[@samdapotato1448]

Linus, I am dearly sorry, losing a sibling is hard. I know from experience as a little over a year ago my brother died. It sucked to lose them at such a young age, and I would do absolutely anything to bring him back. They say time heals all wounds, and it does, but it doesn't remove the scars. As I said, it happened a little over a year ago, and it's gotten better. Make sure you have family and friends to talk to, and if you want it, therapy helped with it. Again, I am so sorry. Keep strong, and push through, you got this king.

[@jochie18]

As a chemical water treatment specialist, I can give you some tips on your cooling water. You don't have to use distilled water, actually distilled water is very corrosive for metals such as Copper, Zink, Nickel and Iron (mild steel). It is more common to use fully softened or semi softened water in industrial closed loop cooling systems. Add some additives to said water that increases the total-alkalinity and the pH, with to optimum being a pH between 8,1 and 8,5. If you can find an additive that also adds a small amount of Molybdenum that would be best, concentration in your cooling water should be somewhere between 80 and 150 ppm. Also don't refresh the waterloop unless you really have to, the water inside the loop will find a natural balance and almost no more corrosion can occur after this balance has been reached. And the last tip, make sure you only use tubbing that is "oxygen tight". As long as oxygen can diffuse through the tubbing into the water, you will have issues with biological growth. The biological growth will lower the pH, again resulting in more corrosion and clogging. If you want check the aggressiveness of your water before using it in your closed loop, you could calculate the Langelier Saturation Index (LSI) & the Ryznar Stability Index (RSI). Hope this helps.

[@UnknownGuest220]

your nothing be quiet

[@theheroofourtime3578]

Kinda a jerk do you have any proof he's lying

[@mohedaicebear]

⁉️⁉️​@@UnknownGuest220

[@MyAmazingUsername]

I don't think industrial cooling cares about distilled water because a leak wouldn't damage anything. But in a computer, non-distilled water would short circuit the computer.

[@zodwraith5745]

You use distilled water in _computer_ cooling because it's not conductive. Industrial cooling has squat to do with electronics cooling. Softened water would have _ABSOLUTELY_ destroyed the systems that got wet here because water itself isn't conductive, but impurities that are introduced with softening most definitely IS conductive.

[@WildWolfGaming54]

I’m sorry about your loss. I’m just now catching up on your videos and just recently saw the video where you built your sister her pc. I’m keeping you and your family in my prayers. I love you like a brother man.

[@Systox25]

This sister is fine for what I know.

[@Shabeaky_Ownz]

Bro that’s tragic sorry for your loss RIP don’t even worry bout your KZbin! Go with your fam man 🙏🏾🙏🏾🙏🏾

[@sgrube2]

I recently lost my sister too Linus, you are going to get through this. It’s tough and painful, but staying with the rest of my family, focusing on positive memories and knowing she is in a better place has helped me.

[@bexxy629]

I'm sorry for your loss

[@sgrube2]

@@bexxy629 thank you

[@atieh3000]

I’m sorry for your loss.

[@irdc]

I'm sorry for your loss :(

[@sgrube2]

Thank you everyone

[@johnlucas6683]

I am so sorry for your loss man. I can only imagine thr grief and loss you and your family arw going through. But also I think, in a way, getting busy with that leak kinda helped you in a way.

[@prestok]

Huge coincidence, yesterday I thought about the video with your sister. It was a very wholesome one. I'm just now hearing about her death. I'm very sorry for your loss and wish you and your family all the best.

[@LoopyChew]

Having a sibling passing so young sucks. I’m sorry for your loss and I hope the memories you have with her will bring you and your family joy and warmth in the times to come.

[@mrschrodingerdog]

Chemistry major here. First of all, very sorry for your loss ❤ As for the corrosion, follow the flow of water. The fact that some fittings were pristine within the same system means that they were not close to the anode (the metal that is getting corroded). Make a scheme of your system taking into account water flow direction and find the first sign of corrosion. Your anode (the culprit) will be BEFORE the first fitting corroded.

[@jakobfindlay4136]

that lends to the theory of exposed steel in the automotive fuel lines

[@mackado]

Plumber here, I agree completely.

[@thefallen5884]

@@jakobfindlay4136 I think this theory is a bit less likely as he cut the lines with exacto knife, no way you could cut steel reinforced lines that way, at least not multiple of them.

[@xanderplayz3446]

I was just about to comment this!

[@marekvojta9648]

​@@thefallen5884 Human hair is actually pretty strong yet you cut it with scissors. Strength in this thin fibres doesn't count. Look for sharpness of knife testing on the internet. It is literally cutting a wire using knife.

[@DominicMalta]

My deepest condolences on the loss of your sister. My heart goes out to you and your family. On a more positive note I have been waiting for the conclusion to this leak sense you talked about on the WAN Show.

[@Alorscty]

I’m sorry for your family’s loss Linus Your son is so cool and chill out ,loved his replies

[@AverageCitizen333]

I'm sorry to hear about your sister. My condolences to you and yours. Its never easy, but I hope you all find your peace with it.

[@max2themax]

12:12 Absolutely amazing interaction

[@countbowl]

I’m so sorry for your loss, I hope you and your family are doing as well as can be. I lost both my parents in pretty quick succession at age 18 and it was rough about 9 years ago. Only now am I fully coming to terms with the loss. It gets easier and with time the sadness fades leaving love.

[@infinity5420]

Im so sorry for your loss. Youve completely changed me, Ive gotten into tech because of you. Now going through school to get my CISSP

[@lulcy789]

That’s terrible, I was actually wondering about her the other day. I’m sorry for your loss 🙏 we love you Linus

[@rainbow3d]

It's not the same sister that appeared in a video, I think it was said in the WAN Show he mantioned.

[@Metal_Maxine]

@@rainbow3d It's his oldest sister.

[@myromm]

I love how at 8:55 , Linus son asks to rebuild all computers( I'm assuming with new parts) since he most likely grew up in a enviroment where new tech parts are a common thing; And linus re-educates him politely about the cost of things and also makes a joke with it to make it better. Pretty cool.

[@mcscapsuletech]

Sorry for your sister My prayers go out to you and your family

[@TehMezdawg]

So sorry for your loss Linus. You helped me on NCIX one time when I was like 12 and have been following the career and channel ever since. Every time I want to go watercooling I watch your comparison video and just buy a Noctua instead to avoid this whole mess lol.

[@zerocodm8387]

My condolences Linus

[@FletcherHoke]

I'm sorry for your loss it's hard losing a loved one. Especially one you're so close to

[@knifecTA]

Linus, I have been watching you since I was about 8 years old. I am now 20, and you are a massive inspiration to me. I am genuinely sorry for your loss and hope you find peace within it. All of your 15.8 million subscribers love you, and we hope you start having better days. I am so sorry for your loss, Linus. I hope everything starts to get better for you and your family.

[@drewski6843]

Dude, sorry for your loss. Recently lost my father to cancer. It's good that you found a way to keep yourself busy during these times. Great video btw.

[@NinjaStreak]

Massive prayers and condolences to you and your family, Linus. I can't imagine the pain and grief you went through.

[@tarlgillings]

Sorry for your loss and condolences to your family

[@VerderfMKII]

This went from heart breaking to wholesome with Linus' son helping out.

[@YuProducciones]

exactly 💯 🎉😅

[@アルファ大天使]

Is this guy never getting old? I mean since I'm a baby I'm watching his videos And now I'm getting 24 And Linus is exactly the same man

[@MoneyKiller1st]

Bro is like Wolverine, he doesn't get old