Testing a USB water steriliser

This unit uses an electrochemical reaction to convert water with salt into a sanitising liquid called hypochlorous acid. This type of device is sometimes called a chlorine generator.
In the event of a disaster, something like this could be improvised to sterilise water using low level solar energy.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
www.bigclive.co...
This also keeps the channel independent of KZbin's advertising algorithms allowing it to be a bit more dangerous and naughty.
#ElectronicsCreators

[@MrShwaggins]

"Didn't want to make too many videos of the same thing.." BIG CLIVE'S OZONE GENERATOR EMPORIUM

[@unperrier]

Big Clive's LED lighting emporium

[@greenaum]

He's working on his own layer, just for his house. Scottish people don't tan well.

[@williamsquires3070]

Emporium… LOL! 😂🤣😆😅

[@cheaterman49]

Will it carbonate though!?

[@MetalheadAndNerd]

Lots of us viewers could send him more diverse stuff to reverse engineer but he doesn't want that.

[@Nighthawkinlight]

I bought a ton of these in various styles a while ago. Useful little things for all sorts of neat chemistry. The two plates are both titanium, the anode being coated in mixed metal oxide to resist corrosion.

[@cherylm2C6671]

*all ears*

[@RomanoPRODUCTION]

Please stop, you're making BigChlorinator a bit jealous ❤️😂 watch you soon

[@thomashowe855]

Oh, hi there!

[@jepoyeng]

Do you know how to make a DIY coating for the titanium anode?

[@justintothetruth]

Lol, what are you doing watching KZbin videos? You already know to much. Now go out to the barn and make us more videos that we can get in more trouble with our women folk TRYING to duplicate. KIDDING OF COURSE. LOVE THE VIDEOS. YOUR PRETTY GOOD TO CLIVE. ok I’m done yelling😜😉

[@Paddy_Roche]

“I didn’t think this through did I” “No, I never do” Clive you are awesome

[@phydeux]

He's certainly more self-aware than I am.

[@stiff629]

Love it. "That smells like a swimming pool exploded"

[@user-njyzcip]

Have you ever ripped a fart so huge the swimming pool exploded

[@markm0000]

@@user-njyzcip You’d have bigger problems than just a swimming pool exploding.

[@AsymptoteInverse]

Nitrogen trichloride, anyone?

[@cressmerrill7280]

Bought one of the chlorine generators in 1971 for a trip to Mexico. It used 4 AAA batteries, had a small scoop and a container for salt. Wanted to send you a pic, but couldn't attach.

[@joeyjones6]

I think creating an accurate dose of hypochlorous acid in a small quantity of water and then adding it to a larger quantity of waterer to sterilize it would be more consistent, eg make 100ml of hypochlorous acid solution and then use for batches of water 1L+.

[@grimace4257]

That’s why Chris Jarrett gets the big bucks 😂

[@dogwalker666]

That's what I was thinking.

[@pacman10182]

for standard 8.25% bleach, it's 6 drops to the gallon you'd have to know the concentration to know how much to add at ~50% you'd only need a drop, any more and you'll need to increase the water

[@dougsteel7414]

Sounds like homeopathy 🤣

[@Unsensitive]

@@dougsteel7414 Here we are diluting a poison/oxidizer to levels our body can tolerate, but many small organisms cannot. If it were homeopathy we would instead be taking something like a bacteria laden solution, diluting it in the world's oceans, then taking one drop as "medicine" for curing an infection.

[@SomeMorganSomewhere]

Chances are the electrodes are Titanium, one will be coated with "Mixed Metal Oxide" (mostly Rhodium Oxide IIRC), at least that's what they use in salt chlorinators for pools.

[@HomelabExtreme]

And titanium is easy to test for. But a lot of titanium products from china actually isn't titanium, as it's too expensive, so some stainless alloy seems more likely, 316 would be suitable, but not too cheap either.

[@AnnaVannieuwenhuyse]

I never considered pools may not use chlorine externally but just make it with a'tricity 😳

[@StreakyP]

@@HomelabExtreme just using stainless steel as a cheap replacement for titanium would be my worry but that has BIG problems in that you specifically cannot use stainless in electrolytic rust removal as the current can also release carcinogenic chromium ions too and that process is basically the same as here... Post apocalypse I think I'd be banging 2 rocks together to make a spark and boil my water to sterilise it rather than looking for a USB power bank and drinking this.

[@Equiluxe1]

I was thinking that it may well be Inconel.

[@StreakyP]

@@Equiluxe1 depending on the exact grade Inconel is still 14% to 31% Chrome so I'd still like to see a check made that this didn't electrolytically leach any chrome into solution before I drank it.

[@linuxgreybeard9945]

Clive: "That water is now completely undrinkable". Foodie chef: "That water is now perfect for cooking pasta in".

[@trippcailean9594]

when people ask how much you need to salt water for pasta and you ask if theyve experienced drowning in the ocean

[@EddSjo]

@@trippcailean9594 Yes, pasta water should taste like ocean water. :)

[@AsymptoteInverse]

According to my dad, his (Italian-born) grandfather used to say pasta water ought to be salty like the sea.

[@OldWaysNewDaysPrepper]

Hi big Clive! I used to work in swimming pools and some places use this process on a larger scale to produce Sodium hypochlorite for swimming pool treatment. Is safer to buy and store salt and convert it on site where it is needed. I use on of these plug-ins and I use it to make steriliser for my brewing gear (wine & beer) - it's way cheaper than buying steriliser powers, and I always have salt at hand.

[@guitarstitch]

I was actually pondering this for my own swimming pool as an automated sort of chlorinator. I wonder what all it would take to DIY this....

[@iggy151]

@@guitarstitch Those exist already. Hayward makes one called the AquaRite. Fantastic system, well worth the money. The water had never been cleaner, softer and easier on the skin and eyes than with that system. Ours is also paired with a sand filter filled with glass media in lieu of traditional sand. Crystal clear water all season with almost no effort at all.

[@donaloflynn]

@@iggy151 Easier on the eyes and skin than what? Pouring in liquid or powdered chlorine? What is the reason for using glass instead of sand?

[@iggy151]

@@donaloflynn yes exactly. Something about standard pool chlorine and all the related chemicals, are just so much more aggressive to the skin and eyes. On a salt system it won't dry your skin out and you can open your eyes under water without it burning. Not having to buy and screw around with so many chemicals is a great bonus. Glass media is just finer so it can catch much smaller particles, but at the same time doesn't need to be changed as often. Ive found it to be far superior and well worth the money.

[@guitarstitch]

@@iggy151 Thanks! It sounds like I have some research to do. However, there would be a certain geek factor to a DIY system. ;)

[@bryanhumphreys940]

In my misspent youth, I did work study in a university lab on behalf of a company that had a suitcase product that converted brine into bleach solution for water treatment. They sell a pen for backpackers for the same purpose. It worked just fine. The target solution was around 1 ppm chlorine. Their claim was that it worked better than simple chlorine because it had many bleaching products. My main takeaway from the experience is how many gross things are in the drinking water. Since part of the experiment was counting colonies on petri dishes. I made a simple cell out of pencil graphite and 9V battery in a glass vial that would make a bleachy smelling solution when you made a salt solution.

[@Dunyas]

I don't believe they make those pens anymore, or at least the company that first brought them out discontinued them a while ago without any replacement. Never seen a knockoff either. I've heard various reasons like issues with government contracts, partnership breakdowns, and issues with a consumer product due to user error. The companies involved still makes chlorine generators for water treatment, but for group instead of personal water treatment. Really wanted one for the novelty back in the day, but they were mad expensive compared to other more productive options.

[@alexanderkupke920]

@@Dunyas Didn´t clive once show such a product for backpack water treatment? Not exactly a Pen, but a device where you could fill in a special tablet (likely salt) and a small amount of water to then create some liquid by the use of electrolysis to disinfect about one liter of water?

[@qanniqtuq]

Miox. Still have the "pen" work with 2 123A battery.

[@raymondmucklow3793]

To get the most accurate chlorine test, you would need a titrator, I know this because we are ordering one for our lab at work. We are getting false positives for chlorine residuals at work, from Iron and manganese interference. Also I would find out exactly what kind of test stripes you are using. Some measure free available chlorine ( chlorine that is available to to disinfect) some test total chlorine, some test chlorine residual (how much chlorine is in the water). It gets quite complicated. We actually use chlorine gas mixed with ammonia to create chloramines. Which last longer ( they don't off gas as easily). Not as strong as straight chlorine, More common of an disinfectant. Those tablets if I heard you right they were dichloramines. I could go on for a while but this is literally what I have ben studying for the last 15 months. Water Treatment Plant Operation I received my class 2 license just a few months ago. I'd be glad to answer some questions if ya had any. Maybe you already know all this. Cheers from kansas another fine video Sir Clive.

[@changeagent228]

I have one of these and it says makes bleach which is sodium hypochlorite and an alkaline. Yet many folk say that's false and it produces hypochlorous acid. If you google electrochlorination it is said to be the primary way to make sodium hypochlorite for bleach products. What is this device producing? Thx

[@MattyEngland]

Good to know that people like you are in charge of our drinking water. Keep up the good work 👍

[@SodaWithoutSparkles]

@@changeagent228 both actually, the electrolysis of concentrated NaCl produce Cl₂ which is soluable in water, forming HOCl (Hypochlorous acid), which then reacts with NaOH in the water (formed by removing Cl⁻ and H⁺ from the water) and form NaClO, which is sodium hypochlorite

[@AnnaVannieuwenhuyse]

@@SodaWithoutSparkles science! Thanks.

[@mscir]

Great post, thanks.

[@wouter11234]

I hate giving presentations and I have one due in 3 hours. Hearing your smooth and steady voice really gives me confidence in a weird way, thanks Clive.

[@RobLudwick]

Calm and steady. This is the way.

[@markfergerson2145]

If anything turns to shit while you're presenting, a serene "One moment please", as you turn your back to fix it will steady your nerves and reassure your audience of your competence. Go to it!

[@steven44799]

In an ironic twist I saw a screen grab from one of your videos tearing down a faulty breaker/rcbo advertising a "voltbox" (scam voltage stabilisation thing that contains a capacitor and an LED for $50). On a brighter note, your website is blocked at work for the filtering category "weapons" so that's exciting.

[@alexanderkupke920]

Weapons? oh, wow I wouldn´t see that. Except for maybe electrocuted food or carbonated alcoholic beverages...

[@BrainiumBasher9001]

@@alexanderkupke920 wouldn't not wouldn`t

[@KomiyanVT]

@@BrainiumBasher9001 `'´ It makes sense if the workplace feels threatened by quality - then clive is sharing 'weapon schematics' with us by exposing any flaws, and suggesting a fix...

[@johndododoe1411]

Seems like an outside agency is providing badly curated blocking lists. Would be interesting chasing down the source of that misclassification, as those same bad lists might one day be sold to something worse than corporate nanny filters.

[@IncertusetNescio]

Our dishes at work are supposed to be (according to food safety anyway) ~100ppm on sanitizer. higher than that is 'a problem'. Your concentration is very much in that range. That unit is pretty effective for the power draw.

[@jasonwebb7978]

I love how you can "see" the bubbles forming on the plates by watching the current drop as they reduce the surface area in contact with the liquid.

[@UltimaDoge]

I know this is so out of place, but I every time really enjoy his calming voice. It just relaxes me and I can really enjoy to just watch whatever he shows

[@katyushaslab7635]

If you leave one of these running in a saturated salt solution for a couple of weeks, you end up with a decent crop of sodium chlorate (after disproportionating by boiling for a bit to finish the reaction). Always useful to know. The anodes on these seem to be MMO for the most part, cathode is either Ti or stainless steel. Theres a few varieties of them out there.

[@somebeinganonymous]

Interesting. What happens when you boil (finishing the reaction) and how do you recover the chlorate crystals?

[@chemistryofquestionablequa6252]

@@somebeinganonymous The hypochlorite disproportionates to chloride and chlorate, you harvest the chlorate with fractional crystalization.

[@somebeinganonymous]

@@chemistryofquestionablequa6252 I see; so I assume fractional christallisation is done by cooling the boiled solution, harvesting the chlorate crystals whilst the chloride is more soluble and remains in solution, boiling again and repeating?

[@chemistryofquestionablequa6252]

@@somebeinganonymous exactly

[@hemi4722]

What do you use sodium chlorate for? Can I use it to salt my roast potato?

[@MrAsBBB]

Can I smell it? Oh yes please! Just love it! This is the best entertainment and education on the net I have ever found. Well done Sir Clive! Excellent as always.

[@michaelwood5117]

Thanks - nice to see your "tear-down"! In South Africa its common to see salt water chlorinators in swimming pools pools. I made my own unit using titanium aanode electrode and an iridium plated titanium cathode. It worked well but one had to add quite a lot of salt fairly regularly. (I seem to remember the system drawing around 15 amps)

[@neillcoetzer9133]

Huh I'm from ZA and I didn't even realize they were uncommon elsewhere

[@KomiyanVT]

@@neillcoetzer9133 Nah - they're common here in AUS too, a nice and lazy way to chlorinate a pool... ...Oh and the heat + UV light kills chlorine, so a 'perpetual' supply of it is needed or your pool goes green in two weeks! Many people don't cover their pools, so chlorine loss is a concern...

[@neillcoetzer9133]

@@KomiyanVT ahh yeah. That I'm aware of. Having to buy a 50 kilo salt bag and chuck it in every 2-3 weeks. Still cool though

[@Pugjamin]

In the water industry, the required strength for disinfection of tools/equipment/parts for use on potable water is 1000ppm.

[@jakerickytan1232]

To control microbiological growth in cooling towers, our spec is 0.3-1ppm chlorine.

[@nathanh2917]

@@jakerickytan1232 In cooling towers your only trying to kill algea growth and the like. Not as worried about bacteria, viruses, and other microbes. Drinking water however you basically want to kill everything.

[@vexy1987]

1000ppm isn't safe for potable water, but might be used to sanitize equipment/surfaces or contaminated tanks. The water coming out of taps would have to be watered down to 2-4ppm. Anything over 10ppm would be totally undrinkable. I wonder if your thinking about treated sewage water that's reclaimed for cities?

[@KatyLawson]

6am uploads? I thought I was the only one in Scotland up at Stupid O'Clock!

[@chrishartley1210]

You are, Clive is in Ramsey, IOM

[@1224chrisng]

@@chrishartley1210 same timezone I'm guessing, unless if IoM has a different Daylight Savings date

[@18robsmith]

@@chrishartley1210 Which explains many things ;-)

[@FauxFauxes]

I suspect he was still awake, given past behaviour.

[@Francois_Dupont]

"in the apocalypse" "the end" clive knows.

[@ATMAtim]

It absolutely amazes me at the odd stuff being floated off of the China coast. I am very interested in the materials used in the electrodes. Thanks for bringing this to us, Clive.

[@Arachnoid_of_the_underverse]

I love how the water sterilization tablets have a warning " do not swallow tablets" written on them.

[@randomdudr]

Still valid. You talking about 1:1000000 parts or less. 1 tab for 20l. You don't want to swallow that

[@petraoleum5816]

I wonder how practical it would be to bypass the battery/usb aspect, and attach a hand crank or solar panel directly

[@bigclivedotcom]

As long as the polarity is correct it should be OK.

[@Visiorary]

I have a USB solar panel that folds (3 plate) and I used it to charge tiny quadcopter batteries. It would buzz with a heavy load. The panels would buzz! Six batteries at once. Pretty fast charging my phone at the time. I want one.

[@-robo-]

It could be done, however having solar charge a battery and powering it from there would be more reliable (and versatile) IMHO. Good thinking though

[@KomiyanVT]

@@Visiorary You'll find a power converter in there somewhere - though those typically squeal... I do distinctly remember a sort of "buzz" when I connected a 200W linear-regulated panel to a battery array - as I closed the circuit I could feel the terminal buzzing... On topic though; an array of two solar garden light panels in series would produce some sufficient power for the water sterilizer - for bleach generation you'd need 10 of those arrays in parallel, or wait one hour...

[@sigmasquadleader]

@@KomiyanVT 350mA from a 60x120mm 6V panel is EASY, less than $10 to have the panel, so I'm not sure you'd need as many as 10 garden solar panels to get that current. Unless you are talking 0.5V photovoltaic cells individually, not an array in each panel like is much more common, even in garden lights, which in my experience put out 1.5-3.0V.

[@phydeux]

Hey Clive, no need to swirl unless it makes you feel better. 😊 Homeostasis will distribute the pH evenly enough that a strip that big in a volume that small won't be affected. Nature abhors a vacuum after all.

[@barrieshepherd7694]

I think a potassium permanganate crystal may be a little easier (and maybe safer!) for water purification in an apocalypse - and it can be used to make fire (with glycerine).

[@impalatube]

@@manuelh.4147 It's not the type of crystal that perhaps you're thinking of. It's a crystal...... like salt.

[@barrieshepherd7694]

@@manuelh.4147 Yes but the video is not about boiling water it's about using USB power to sterilise water. Anyway a kilo of pot permang would last me a lifetime I suspect if I were only using it to sterilise water.

[@gorak9000]

@@manuelh.4147 Everyone knows you put your crystals out in the moonlight to recharge them

[@henrikchristensen8458]

I have one of those, works great. Using it to make sanitizer. Think the coating is titanium. The coating is to increase the lifespan of the electrodes, because one electrode will eat the anode over time. If you use normal tap water, there will be minerals and other stuff in it, and the chlorine particles will stick to, and the ppl will decrease, Use demineralised water, and your solution, will be stronger.

[@michaelmoorrees3585]

Promised 1A, but draws only 0.3A. Sounds about right. I bought some "12V 1A" DC switching "wallcubes" from China, a couple of years ago. Put a varying loads on them, and the voltage dropped below 10.8V (10% drop off 12V), at about 350mA. So I concluded that a "Chinese Amp" is about 1/3 of an Amp, used elsewhere in the world. Even here in the US, where we use an "English Amp" instead of a "metric Amp". People say, all Amps are metric, but don't tell that to anybody in Merica !

[@phonotical]

Add some dye to the water, when the colour goes, assume moderately safe to drink, though might want to leave it standing for a day so the chlorine has can mostly escape and not burn the shit out of your insides

[@igrim4777]

This assumes that the concentration of chlorine compounds that is strong enough to bleach a dye is also strong enough to destroy pathogens. This is not a safe assumption.

[@phonotical]

@@igrim4777 if you wouldn't drink it, it's probabaly a pretty safe assumption

[@soundslike8454]

It's a mini saltwater pool chlorinator! Nice!! Where I am, salt water chlorination is the go to for pool owners. Interestingly those pills are stabilised chlorine pills, meaning they protect the chlorine sanitiser from damage coming from sunlight. The stabiliser is known as cyanuric acid and binds to the chlorine to stop UV from destroying it before it has chance to disinfect anything. There are much bigger tablets of that exact same chemical that people can use for their pools.

[@cameradoctor205]

If you can design one to turn water into wine, you'd be onto something Clive :)

[@devttyUSB0]

Carbonated wine, right? :P

[@davo2225]

Grape idea.

[@MichaelNNY]

Hard to find right now, about 30 bucks on amazon and about a month to ship. I ordered one because this is pretty fascinating to me!

[@bradprimeaux8443]

"I didn't think this through did I? No, I never do." You and me both Clive

[@lpconserv6074]

Great video. 5 volts is about right to gen up some cl- ions and it does. I also suspect stainless steel. Likely 316 stainless, as the more common 304 stainless does have a slight magnetic attraction. The "coating" may be formed when the reaction is done in the solution. Many stainless steels do "stain" but do not corrode in certain environments.

[@Alacritous]

To purify water, create the concentrated solution and then add a few drops of the concentrate to the bulk of water that you want to purify. It'll be easier to control it that way.

[@spdwebdotnet]

I work for a water utility... we use this same process on a much grander scale for our on-site sodium hypochlorite production. We can produce up to 15k gallons of 5.5% solution per day.

[@peterjameson321]

Thank you for another interesting and informative video Clive. The discoloration of one electrode might be due to electrolysis, not withstanding the lack of colouration at the edges. However reversing the polarity would determine that. I wouldn't want to drink the water either as toxic metal ions may well be released into it. I'd have used graphite for the electrodes if I'd have designed it -cheap and non reactive in this application. -Pete

[@nogravitas7585]

Two graphite sticks and a solar panel usb powerbank converted to alligator clips probably wouldn't sell as well as mystery plastic box on ebay though.

[@travisash8180]

Don't drink the water, Clive ! Give it to little Ralfy and see what happens !

[@TheSmookk]

I would have reversed the polarity too out of curiosity, Graphite is a good call, I still have sheets from nickel plating I did on some old moped restoration, worked a treat, process looks like magic

[@KomiyanVT]

I had this idea as soon as I saw metal electrodes, I thought "Heck, could I do as well with a bunch of _pencil leads_ stuffed into some wires and hot-snot?"

[@TheSmookk]

@@KomiyanVT pencils contain little graphite, don't think any lead but yeah still better

[@phbrinsden]

Exactly how I chlorinate my pool here at home. The salt level is about the same as human tears so the water is very pleasant to swim in. We have an in-line electrolysis cell with a very sophisticated control circuit with salt level readout, alert if cell needs cleaning etc. you can put it in boost to superchlorinate after a storm etc. the great thing is no more chlorine tablet handling. The consumable is muriatic acid and you know when to add some by pH reading. No more chlorine smells on body etc. after swimming. My cell has platinum electrodes.

[@SusanAmberBruce]

Yep knowing what that metal is specifically is important re the risk of toxic chemistry

[@grestipher]

its actually coated in graphite, i recently used a set of graphite rods which i salvaged from 6V lamp batteries

[@lloydevans2900]

The electrolysis of salted water has several different products, in addition to the gases released at the electrodes. The anode releases elemental chlorine, and probably some oxygen too if the solution is not very concentrated. The cathode releases elemental hydrogen by decomposing water molecules, which leaves excess hydroxide ions in solution. So as electrolysis proceeds, the solution becomes increasingly alkaline. Some of the chlorine released at the anode dissolves into the solution and reacts with the hydroxide, generating hypochlorite ions, which are the active component of "chlorine bleach". This is essentially how bleach is made industrially, just on a much smaller scale. Though in this small scale process, there will probably be a fair bit of free chlorine in the solution too, hence the intense bleach-like smell.

[@evilution_ltd]

Now I'm wondering about putting 1 in the cistern and have some kind of salt dosing device.

[@assassinlexx1993]

Water softener device? And uv germicidal lights .

[@greygleam]

the anode is MMO (mixed metal oxide) usually a mix of Iridium/ruthenium or Iridium/tantalum on a titanium substrate. This is done so the anode does not dissolve in the reaction while produching the chlorine compound. The cathode is ideally bare titanium but they could have gone cheaper and used some 316l or such stainless steel. The anode cannot be pure titanium because you will just "anodize" it and this will create a electrically insulating oxide film on it which would stop the reaction . Hence the anode is coated with this metal oxide mix that stays conductive and does not dissolve into the solution. Platinum or platinum coated titanium would also work as an anode but is not used because MMO is usually cheaper.

[@GoF1ns]

This is the same technology we use in salt water pools. In tandem with cyanuric acid in the water to protect the chlorine from the sun, you can have a cleaner pool with a lower free chlorine than a chlorine tablet fed pool.

[@notalostnumber8660]

Good to see something that's not snake oil and actually useful for emergency situations. Probably going to buy one, since we sometimes don't have clean water available here in Chile (thanks Avocado farms for using up everything...)

[@paulwyand6204]

I have had 2 varieties of these. First was an electro San, a marine sanitation device that used seawater to create chlorine to sanitize water from the toilet before pumping overboard. And currently have on on my pool pump system to generate chlorine for the water, very handy and the salt water is nice to swim in.

[@paulk8io445]

I have a version of this for my pool. My pool has salt level adjusted to about 3500 ppm and then the plates are in a unit with a power supply in the filtered water flow. The system easily generates enough sanitizer for my 25000 gallon pool. It is a fairly complex system monitoring salt level, water flow, temperature etc. it requires cleaning with acid as the plates calcify. But is much better to deal with than chlorine direct.

[@thisguy2958]

Well I'll be damned if I'm up for a Clive post from across the pond

[@Investigativebean]

They are supposed to be titanium and mixed metal oxide. There are two different documents available online that describes an electrolysis chlorine generator where one can diy a generator using two carbon graphite gouging/welding electrodes, a computer power supply, and two 2 liter soda bottles. You can find them by searching hypochlorous acid generator. They made the guides in light of the global pandemic so that anyone in effect could access the materials, and at the least possible cost.

[@protocol6]

They use ruthenium oxide coated plates for chlorination of saltwater pools.

[@rickymherbert2899]

I would like to see Ralfy's comments on this after using it in a whisky review. 🤔

[@alphadog6970]

This channel & the comments are a gold mine of information. Thanks C

[@nadieselgirl]

Wondering about the viability of a usb-powered woofler now.

[@adksherm]

Woofler … lol

[@JustIn-sr1xe]

A sub woofler? sick mate sick sub woofler.

[@travisash8180]

A Wooly Woofler ?

[@nadieselgirl]

@@travisash8180 Woolen woofler for winter.

[@tylern6420]

I think the spray bottle one is better than this because it stops itself, doesn't go immediately when plugged in (you have to push the button to start it), has a nice light to look at while it's going, and it lets you immediately contain the solution once it's done

[@RomanoPRODUCTION]

BigChlorinator strikes again in the middle of my night

[@mysock351C]

The special coating is probably some form of anodization, I would guess. There are chemical conversion coatings that can be used that are still somewhat conductive but will stop corrosion.

[@piconano]

I like the UVC light bottle you fill up and flip a switch. All life inside the bottle, will be terminated or have their balls cut off! No fuss, no mess, no chemicals.

[@stanburton6224]

Water purification tablets release not chlorine, but chloramines which are longer acting. They release chlorine much slower and therefore more thoroughly sanitize contaminated water by maintaining an adequate chlorine supply for a longer period instead of creating a big spike of chlorine that then evaporates quickly.

[@kaysimpson]

As a truck/lorry driver with the rough roads in the U.S., chlorine cleaners inevitably spill and/or leak all over anything nice. Having a way to create a bleach solution for cleaning when needed sounds like just the ticket! I'll be on the lookout, thanks

[@bigclivedotcom]

They do a spray bottle version too.

[@lopiklop]

That's actually kind of smart, at least it is practically applicable well i mean in theory all these survival gadgets usually just quench our paranoia and sit in a drawer. The kind of person that would feel the need to buy a usb water sanitizer is not the kind of person who ends up using a usb water sanitizer

[@mavamQ]

That 5 seconds between taste test and hearing his voice, man, thought we lost him in the name of science!

[@captainkiddoregon]

We have a Kangen water Filter/maker that is arguably the best on the market. It is the only system that has the US WQA approval and seal. It makes anywhere from 2.5 PH to 14.5 Alkaline, ionized, microcluster, dechlorinated water. Basically 7 different waters. It as a Smart Filter that does take out a lot of the nasties then there are 8 Titanium Plates which these are coated in Platinum. You know how water and oil doesn't mix? Well this water with it micro cluster molecules actually emulsifies the oil and makes it all milky. Pretty amazing to see.

[@danyf3116]

I said it before and I'll say it again. You're the Bob Ross of electronics. ☺

[@rbmwiv]

Years ago at least 30+ I used a battery charger hooked to electrodes in the tank of salt water. I was separating it into hydrogen and oxygen, I had a setup so I could catch all the hydrogen and fill a 30 gallon trash bag with it. I then attached my fuse, lit it and let her rise into the air usually exploded 40-60 feet and it was very loud and made an awesome fireball, I started making them in the day and let them loose at night. Looked so cool!!!! Several times I heard the cops driving around trying to find the explosion, my mom said it shook the windows and pictures, in high school I built a heavy duty potato cannon that I used oxygen and acetylene for fuel, would send a potato out of sight and was shaking windows at buddies grandmas house 1/4 mile away. No one worry about safety it would hold 1200 psi bc I checked it by pressuring it with nitrogen, hooked everything up kept it far away while testing etc, it was built with Chrome Molly tuneing I worked in NASCAR and had access to all kinds of stuff. After the pressure test I put a blow out chamber that would pop at 500psi and not explode. I will do some crazy shit but I always do it safe as possible.

[@SodaWithoutSparkles]

I think these were not used to sterilize water, but to produce water that can sterilize other things. The electrode might be just graphite or carbon, or coated with graphite or carbon

[@UpLateGeek]

It's common after a major flood for tap water to become contaminated. Not 100% sure why, possibly excess runoff in the catchment area puts a lot of organics into the water supply, which is too much for the regular water treatment systems to cope with. So this could be helpful for that situation, if you can figure out how to make it put a reliably safe level of chlorine into the water. Although it's possible just leaving the water to outgas for some time afterwards would be allow the chlorine to dissipate.

[@yoymate6316]

i was thinking about how neat this would be to make relatively high concentration hypochlorous acid virtually for free to sterilise vegetables and whatnot... then i remembered that i live in brazil, where you can literally get little tubs of relatively high concentration hypocholorous acid literally for free at any government-run health clinic to sterilise vegetables and whatnot

[@ricknelson947]

Just to note. The water plants I work at as an I&C tech here in Florida. The target CL2 concentration for finished drinking water leaving the water plants is no more than 3ppm. Above that, there will be complaints. In the most distant from the plant areas of distribution, I believe that the minimum concentration is 0.2ppm. I am not a licensed water plant operator, but I do calibrate and repair the instruments.

[@alexanderkupke920]

Oh wow, 3 ppm seems to be quite a lot. The water treatment stuff we got for our pool recommends not to use the pool if the chlorine measures 3 mg/l or higher and to ideally have it at around 1 mg/l or less (for all those wondering, for water we can assume 1 ppm = 1 mg/l). But then I guess, if a water treatment plant puts out 3 mg/l, that will never be the amount coming out of a tap unless you live next door.

[@ricknelson947]

@@alexanderkupke920 yes the CL2 dissipates quickly once it leaves the plant and is in the system. Generally there is some distance between the plants and the first customers. Though there are exceptions and those plants will target a lower CL2 dose. You are correct in that ppm and mg/l are virtually the same. I have operators that want mg/l displayed and others that want ppm. I gave up trying to explain that there is no difference a long time ago 🤷‍♂️.

[@dosborne2816]

"I didn't think this through, did I? No, I never do.' I subscribed to my KZbin Spirit Animal today.

[@ericjarvie]

I regularly camp and that seems perfect to me as I don't like to use the tablets..I can only assume electrolysis is the mechanics here as perhaps sodium and chloride are separated by the ionizing electric currents....but if you don't know the tablets are not recommended for long term use so perhaps this is an better option..but why didn't it work on the one litre test?...Maybe just too much water by volume the cells of an lead acid battery are governed by the size of the lead plates and electrolyte volume too and if not calibrated in this way then it upsets the reaction so if you require an litre of clean drinking water you should perhaps treat in small stages. .? But looks good and better than pumping chemicals into the body as household salt can be trusted so an great and highly informative video thanks from an happy camper..!!

[@janami-dharmam]

The electrode is perhaps stainless steel coated with carbon; if bare stainless steel is used, the solution would turn green. Glassy carbon is very resistant chemically, particularly to chlorine

[@sween187]

Also it's a good way to make Cl2 gas, that will kill most things, might need a bit more power.

[@jasongooden917]

You can use it to purify water from a Dehumidifier during a Zombie apocalypse, assuming you have electricity.

[@ringsystemmusic]

That’s a wonderful little invention for places like rural China where the infrastructure might not be great, but they’ve got USB ports aplenty.

[@williamsquires3070]

I vote Mr. Clive to be the best comic ever! He doesn’t make fun of, or demean, people or stuff, he just takes apart random eBay sh*t and says funny things while doing science-y things! And he’s so down-to-earth and humble and polite. I love it when he says, “one moment, please” then he comes back and some random electronic thingy spills it’s guts so we don’t have to “try it at home”. I mean, who can beat that? Who needs a comedy club? I’ve got YT! 😂 Here’s 😍 to Mr. Clive for making all these teardown videos! I just wish I had lots of $$$ so I could donate to his Patreon acct. 😢

[@danlemke6407]

I'm wondering if dunking two dissimilar metals in a saline solution doesn't cause it's own electrical charge. Yes, it would be minuscule, but the ingredients are there. There is a reason for dielectric connections. Thankyou for another fine video. You have the gift.

[@AESamuel]

Good call about not using stainless steel. I seem to remember when looking into electrolysis rust removal that stainless steel shouldn't be used as it can produce chromium hexavalent a nasty carcinogen.

[@alexanderkupke920]

I wondered why stainless steel should be a bad idea, but yeah, the chromium containt that makes it stainless for sure becomes an issue. Didn´t even think about that.

[@spijkerpoes]

12:57 Clive decided to like this little unit and keep it and not kill it, I was like AAAAWWWHH

[@GregtheAwesomeNinja]

Leave it in the ocean for a year and chlorinate THE WORLD

[@ZaneDaMagicPufferDragon]

I love my spray bottle electrolysis chlorine making devices they’re awesome at making chlorine from salt 🧂 water 💧!!!

[@HydraulicOfilia]

Randomly found your channel and I gotta say love the accent

[@GarretKrampe]

From memory you need 4ppm available Chlorine for disinfection (15 min rate?) . You can only drink 500 mg/L NaCl in water by AU standards. 1mg/L is 1 ppm so it would be feasible to make sterilized water with your 0.3g salt in 1 L water (300ppm) . But it would take considerably longer . As another suggested use 5 g of salt in 100 mL and then dilute it . At least you can get current flow at that concentration. Sea water is about 35,000 ppm or 35g/L so you could use 10mL of sea water and then add that to grey water . Though the additional oxygen would also be a disinfectant .

[@dominike8430]

The TCCA Tablets release the chlorine very slowly, there is more in there than you measured. You can acidify the solution to free all the chlorine

[@NathanJayMusic]

So if the ocean is around 3.5% salt, this device could be useful if you're washed up on a desert island with one coconut tree (along with a wind-up USB power pack)

[@dosgos]

The lead engineer of a "large" water company told me that the consumer water pitchers offered pretty good filtration for typical situations...as long as the filters were changed regularly. I suppose those filters need to be sourced from a reliable source vs. online marketplaces, etc. Big operations may run multiple-stage water processing but I don't know if consumers would benefit by running a variety of processing stages at home. . .

[@alexanderkupke920]

I guess that depends a lot on where you live and what regulations are. I live in Germany and here regulations and controls for drinking water are the same as for food items. So usually unless you have rather hard water, they should not do a lot for you. But of course that may be a different story based on the age of the pipes in the ground or even more so, the plumbing in your house. But you are absolutely right about changing them regularly, as otherwise, they kind of become their own ecosystem and can do more bad than good.

[@bolamnieplecy6363]

I guess it could be used to clean fermentation parts

[@johnjones4825]

When camping along the Zambezi river in the 60s, my Dad would add Eno to the water...just to make it palatable you know....tough stomachs they had then. I use Eno after too much garlic or red wine, after being woken up with heartburn....

[@bigclivedotcom]

Look for my video on DIY "emo" salts.

[@fredmorton1631]

I seem to remember reading somewhere about not using stainless steel electrodes for fear of releasing hexavalent chromium. This might be complete tosh, but I've used them for electrolysis with no problems so far.............the extra thumb is quite handy though !

[@paulg3336]

Did you find the extra thumb on the ground? If you did, it's not a thumb. It's a penis

[@boredape1257]

impressive that this thing actually works.

[@iStormUK]

Just a thought, but as a water sterliser, wouldn't those tablets want to keep the concentration super low to avoid, you know, bleaching the drinking party? :)

[@InfernosReaper]

Yeah, I figure they'd be for potable water, not a cleaning solution

[@threeMetreJim]

The tablets are the same things you use for cold water sterilisation of baby bottles, so should be a really low concentration safe for drinking a small amount.

[@jakestellar4600]

So in the MAKE YOUR OWN COLLOIDAL SILVER at home is actually disinfectant??

[@bigclivedotcom]

Controversial area.

[@jakestellar4600]

@@bigclivedotcom would love to see you do a video on it sometime. Recently seen someone using a 9v battery in a glass with 2 silver rods from a jeweler (Said don’t use plastic cup or sterling ) But said it’s how colloidal silver is made. I don’t know much about it but your video prompted memory of the other video I seen. Either way thanks for your work !

[@torchofkck4989]

Thanks for sharing I'd say it is like the MSR MIOX water purifier. Get the mix & timing down You could in theory purify barrels of water. 😉

[@jeffreyblack666]

Anything like this needs to have the time depend on the volume. 5 minutes in 100 ml, would be equivalent to roughly 50 minutes in 1 l.

[@bunnykiller]

titanium is commonly used in the salt water pool systems as the electrodes......

[@MrChalmers99]

I think they're graphite electrodes. We used them in chemistry in school to get chlorine off salt water

[@EIBBOR2654]

Clive, I would have liked two other tests with this gizmo. First, I would have liked you to have tested the water for how much Sodium was in the water before the test. Then after the proper mix ratio of water and salt, then 5 minute gizmo run. After I would have liked to see if the Sodium in the water staid the same or increased. Salt being made from sodium and chlorine. The second test I would like to see, would be if you could let that gizmo run until the bubbling stopped. Then test it for chlorine and sodium in the water might be in the water The way I'm thinking about this, is if that gizmo can extract the chlorine out of the salt, there should be an increase in sodium in the water. Also if you were to let that gizmo sit in the water until it stops it's bubbling reaction, the chlorine would still disinfects the water, but the chlorine would have totally dissipated leaving no chlorine smell or taste in the water, It is just a thought.

[@randomdudr]

I'll like to do this test: use a microscope before or after the process and compare bacteria. Probably use river water. great content btw

[@whatevernamegoeshere3644]

You might have run into an interesting problem with testing. You test for free chlorine. As your oxidizer does its job, it gets consumed. You may have had a perfect amount of oxidizer in your solution but it was used up in the process and you end up with zero chlorine while it went sterile still

[@alexanderkupke920]

I would guess that depends a lot on the water used. Usually with water from a regular water treatment plant, there should be not very much in there to react with. If so they may already have used oxigen or chlorine to get rid of that. Of course the waterlines may put some "life" to it, depending how stagnant it remains over a certain period of time...

[@rowgli]

These would be great for sterilising homebrew equipment on a modest scale :) Sterilising tablets are fine, but would be nice to not be reliant upon being able to get hold of them.