Self-Powered Oxygen Machine Tutorial (SPOM) | Oxygen Not Included

[@mebibyte9347]

The greatest tutorials ever spend their time explaining WHY, rather than just showing you the finished product. The first quarter of this video has helped me so much already

[@Tris24680]

It helps you learn that’s why I like his guides

[@marre1003]

i was having problems really understanding spoms and this video came at the perfect time. i love how thorough you are never stop what u r doing. ty

[@EchoRidgeGaming]

Thank you very much.

[@ladasodaexplains3355]

I don't know how you did it, but I watched the entire 37 minutes of content without pause because it was just so good. I've honestly never watched an informative KZbin video that is this long without pausing before. This is impressive. Currently I have 132 hours in oni.

[@dhadveyash2268]

Damm I didn't even realised it's 37 mins long until I saw this comment

[@penultimateApogee]

opened youtube with the intention of looking up a SPOM tutorial, and boom, there this was on my recommended page. thank you for the timely assistance! :D

[@UshkiNaz]

Best SPOM tutorial. Building different SPOMs starting with the simplest one helps a lot.

[@fabianrobledo7616]

The small 1 kg or less polluted water packets running between the water tanks in that final 10 electrolyzers monstruosity: "I'm gonna ruin these generators whole carrier"

[@candy-ass4915]

Literally happened to me, but it was Brine. Had to clear everything out of the Half Rodriguez to clean it up... Even went into the toilets, that was a painful one

[@hebajeba9677]

liquid filters save lives

[@lyssaloo34]

Was able to get this up and running in my base next to my water plant. Also ran the cooling through an ice biome, currently working on getting some domestic Wheezewort in there to help maintain temp. Thank you so much!

[@angelindenile]

Thank you for the slow, methodical explanations! I'm bad at the whole math and logistics side of things in this game, even though its one of my favorites. Thank you so much for saying it in a way I can understand.

[@EchoRidgeGaming]

Thank you much for the comment. :)

[@nemopersonne9868]

THANK YOU !!! I discovered ONI one month ago, and soon enough I've been overheating with all the features. I feel your channel as a gift to enter the real game, understanding the mechanics, the maths, and making my own experiments. You take the time to explain everything, especially what we need to pay attention to, with a touch of ONI humor I think. I might have to watch them several times to get it, but each time I'm able to absorb more info. Thank you so much !

[@billybegood466]

Something I did with my SPOM is I built it close enough to a cold zone and ran my output pipes through that. I had to tinker with it to get it just right, because I was initially getting oxygen at my base at a chilly three degrees Fahrenheit, but once I found the sweet spot I was getting perfectly temped O2 at my base.

[@addisonbailey4847]

Literally what I just needed and posted a min ago by my favorite oni creator, huge

[@sashaisthat3655]

Every time I think 'it sucks there's not a video for this' it somehow came out the same day. Magic.

[@jaidenchoksi1365]

Same

[@EchoRidgeGaming]

Thank you all!

[@zenraged]

This man goes deep! Love the video, exactly the info I needed!

[@EchoRidgeGaming]

Happy you found value in it. Thank you for the comment.

[@BouncingTribbles]

Hey, I found a great way to ensure that only the right gas makes it to any system. Its a gas pipe element sensor attached to a vent via a not gate. Set the sensor to the element you want in the system and it will vent any other gas it detects. I call it my gas excluder. A more basic version also works for sorting gases; just pump all the gases though the same line and put an gas pipe element sensor attached to a vent in the each gas storage. Dunno if you'll see this, but I was just setting up a SPOM and thought of this while watching. Love your videos

[@Engvall100]

as always Echo to the rescue with another ONI tutorial, exceptional as always, even if there was debris in one of the builds LOL

[@EchoRidgeGaming]

lol. The debris haunts me.

[@FunxPiece]

Thanks to you i built my first SPOM today and its the most beautiful thing ive seen xD

[@TheAngryForest]

Good morning Echo! Thanks for another helpful video, and another appearance from Buffer Knight!

[@EchoRidgeGaming]

The Buffer Knight salutes you.

[@punkinpaiTV]

Since I am 600 hours into ONI now, I figured it was time to watch a SPOM tutorial finally. Putting my new skills to the test tonight! Thanks for another fun and informative video! :)

[@EchoRidgeGaming]

Hope you enjoyed and good luck!

[@chetranqui]

Thanks for taking the time to understand this system so well and share that understanding so clearly! This current run might very well be my first ever with a proper Rodriguez. Appreciate it. o7

[@nbbran]

need to watch more of ur vids. love how much detail u go into. this game starts to make my head spin when i go beyond anything basic

[@vasioklka]

the best guide for electrolyzes that i have seen! Thanks Echo!

[@EchoRidgeGaming]

Thank you.

[@frankpliszko5201]

Intresting thing to keep in mind is that in the base version of the game using the neural vaccilator can give you a trait called deep divers lungs which reduces the oxygen intake, basically doubling the max number of dupes these systems can support. And the neural vaccilator can be recharged late game!

[@candy-ass4915]

Both the base game and SO have that, and yes, it's great.

[@geoffreyhebel2438]

Thanks for the detailed explanations I have always had issues setting these up this made it easier.

[@nolan4339]

I'll just note that input water can generally be used to keep the whole system outputting gasses at reasonable temps. If you snake the input water pipes around the pumps and electrolyzers (even with normal pipes at lower throughputs) you can generally keep the setup and output gasses at temps only moderately higher than the input water temp. Thus, cold input water can equal cold output oxygen.

[@candy-ass4915]

True, actually in my setups I usually don't even bother cooling the inside of the SPOM, since the oxygen comes out hot anyway, I cool the oxygen output pipes with the water input, using radiant pipes for both. If you have a reasonably cool water reservoir, it works wonders.

[@guri256]

@@candy-ass4915 the problem is that you will always be cooling the inside of it. The electrolyzer creates heat in addition to the heat dropped into the outputs. This means that you are either cooling it with the input, or cooling it with the output. Because of this, you might as well always cool it with the input, unless there is a danger of boiling the input water. This is because water that runs through an electrolyzer loses something like 80% of its mass, which means that any heat absorbed by the water will be reduced by around 80%. The only situation that I can think of where you would want to insulate the input pipe is if the input pipe is coming in at something like 95° because it’s coming from a hot geyser. In that case, there might be a danger of boiling the water although I haven’t done the math. It probably does make sense to counterflow your outgoing oxygen with your incoming water to get even more cooling, but it’s still useful to not insulate the pipes in the SPOM (or better yet, use radiant pipes)

[@Spoonwood]

And using such radiant liquid piping with coolish water (polluted water vent can work I think), there is no need to make the walls of the system out of insulated tiles. Instead, they can get made out of something quicker to build and better to look at, like granite.

[@candy-ass4915]

@@guri256 After a few more SPOMs built, yes, you're absolutely right. I always build them with radiant pipes inside now.

[@HenryLoenwind]

@@guri256 Where do you see that mass loss? The electrolyser does "1000 g -> 888g + 112g", that's 1:1. The only heat that's destroyed in this system is the heat that's in the hydrogen when it gets converted into electricity. So while it makes sense to move as much heat as possible from the oxygen to the water, so as much as possible ends up in the hydrogen, there's no 80%-loss anywhere.

[@DreamingBlindly]

There's also from Nathan's Sandbox using only 3 gass pumps and 1 electrolizer and is very compact, I'm using it now and it's even giving me more hydrogen enough to feed an anti-entropy and a little bit extra for another hydrogen generator.

[@MrKalidascopeEyes]

Running radiant pipes in your spom will convert the temp to the water feed temp. Not necessarily needed but makes the electrolyzer eat the heat for you. Takes the same space as the same spom just a little more resources. Works great with a cool slush/brine/saltwater > refinery> spom poof 15° o2

[@MrKalidascopeEyes]

Even works on the glitch spoms especially with the new liquid temp plates

[@MrKalidascopeEyes]

Just got back to Oni after a 3+ year hiatus (PC died) and this is still the same someone teaches spoms I complain to add self cooling. Great being back.(fist 2 starts after getting got giant uranium deposits in the starting biom was like wtf)

[@MrKalidascopeEyes]

Roommate laughed at me for spending $1700 on peripherals for 1 game (namely the PC) purely to play again. First thing installed was steam then Oni then bought spaced out. Thank for being there keeping my addiction alive.

[@Y2KNW]

@@MrKalidascopeEyes I run cooling pipes every time. It's a lot easier to add a little heat later if your air comes out a little too cold than try to cool stuff down because you're sending out 40C+ air on a map you weren't lucky enough to get a AETN with or spend power/resources on an aquatuner.

[@nirodper]

@@MrKalidascopeEyes for me it hurts to see when people don't turn off the top hydrogen pump on startup to be able to accumulate enough hydrogen at the top

[@Tamizushi]

Funny thing about SPOMs is that while they do generate a lot of heat, destroying with aquatuner and steam turbines takes a lot less energy than just pumping the oxygen. So another approach would be to build electrolyzers all over your base, to collect the hydrogen at the top of the base and to counter the heat with a normal cooling loop that runs through your whole base. This way, you only need to pump hydrogen and you end up with a lot more excess energy. Gas mixing isn't great for your FPS though.

[@ctrlaltdebug]

I like to pump the heat from the output oxygen into the input water, which destroys a small amount of heat and I get chilled air.

[@karimsonsafehold9233]

Problem is over pressure in base prevents electros from working all the time.

[@OneOfDisease]

If I have a nice cold biome near a side wall I usually sacrifice it in early game and do something similar. I let the hydrogen pool to the top and pump from both ends. It isn't very efficient as over large volumes of space the gases thin out around the pumps quickly and you don't get very good distribution. And gas physics sometimes get stupid and you end up pumping oxygen packets into your hydrogen electric generators if you are careful.

[@Foxy-yr8wq]

I love these videos, it feels oddly nice to have someone explain in depth about this stuff instead of being like "put all of this together and then you this thing, bye"

[@steven401ytx]

I've always loved that there's a design named after the guy who came up with it.

[@AntonKrutoi-kx4ug]

i dont remember moment in my life when i was happier then now when i built my first spom. thank you

[@acheronexile]

Watched over the video a few times to get the whole idea into my head. Now I want to make an oxygen machine with only 9 electrolyzers but all the rest of the stats about the same as yours. The gods have shown me magic numbers after I memorized your notes.

[@TheMule71]

NIce tutorial. A little nitpick. @29:30 you save cooling by NOT insulating the water, actually making the pipe radiant, if your water is below 70°C. 25°C water would actually cool down the oxygen enough that you don't need extra cooling. Just move the pipe down in the O2 chamber, as there's not need to cool down the hydrogen, and make it radiant. Even if O2 comes out at 70°C, water is flowing at about 4kg/s and oxygen at about 3kg/s. Water SHC is more than 4 times than oxygen. If heat transfer were perfect (like long thermium radiant pipe), the equilibrium woudl be reached at about 32°C, that's the temperature of the water entering the electrolizers and of the O2 exiting the system with perfect heat exchange. In a less perfect world, O2 is going to exit they system at about 35°C. Whether that's cold enough for your base or not, it depends on external factors, but for sure it takes less to cool it down compared to 70°C oxygen. In general, there's not need to insulate the water input because: - if water is below 70°C, raising its temperature has no negative effect, only the positive effect of destroying heat (the H2 and the O2 are at 70°C not matter what - so destroying water at 32°C destroys more heat than destroying water at 25°C); - if water is above 70°C, so will be the outputs: there will barely be any thermal transfer, since they are all at the same temperature - so no need for insulated liquid pipes. If water is cold or lukewarm, you can use it to cool down the generators too, allowing you to use standard materials (not golden amalgam or steel) for the whole build. It's just that in ONI source of water at 25°C are quite rare. Most water comes at 95°C out of the geyser or a steam turbine that tames a steam vent. That's why most people build Rodriguez's that are capable of taking in 95°C water. IIRC, there are only 3 types of geysers, cold salt water (or brine, I dont' remember), cool slush and 30° polluted water, that can be fed to a Rodriguez and used to cool it down. Water coming out of cold petroleum generators is at 40°C, which sets the operating temperature of the SPOM (and of the oxygnen it produces) around 50° - 55°C, again duable depending on your base (e.g. both duos and stone hatches are fine - most crops aren't).

[@flutterbree]

I really like that your guide does more than just "put the wire here, because I said so." You actually gave us TOOLS to make our own setups and explained WHY the Rodriguez is set up the way it is (and you even gave some lore!) Keep up the great work, we all appreciate how much effort you put into these videos.

[@EchoRidgeGaming]

Thank you for the compliment!

[@InchonDM]

Watched this tutorial to remind myself how things worked after I took a year-odd break from the game! Looking back at some of my old file designs, the one change I make is putting a fourth Atmo Sensor in the electrolizer chamber hooked up to the electrolizers themselves. This is mostly for the sake of visual balance, so there's not just three hanging out, but it does also give me an automation control on the electrolizers so I can run the pumps separate from them. Based on my memories, this can make initial equilibrium faster and smoother to obtain by pumping the chamber out to vacuum first, so it fills up right away with just the right materials. It's really just mostly for the visuals though. Showing the SPOM using a Nullifier for cooling was also a brainwave moment. I tend to build all my stuff attached to the base core radiating out over time, but the file I'm working right now DOES have a Nullifier nearby. So I could just build my Rodriguez over there instead, use the overflow hydrogen to run the Nullifier directly, and solve cooling for an enormous time period!

[@choosetolivefree]

I wasnt quite sure why I couldn't get a SPOM to support itself. The two keys for me was, first, knowing that you have to bootstrap the system to the point of "equilibrium" as you kept saying. And second, it seems to obvious now, but if you simply do the numbers like you showed here, it becomes obvious that it will work just by doing the math alone. Good video, very satisfying to a logic/engineer type of person

[@bdunten]

This is great! Between this and your aquatuner tutorial, I will finally be able to progress beyond 200 cycles. Thank you very much!

[@EchoRidgeGaming]

I am happy I could help. Enjoy your colony!

[@Ninjabob568]

I think you single handedly got me back into Oni

[@xxmelle]

I have reached a point in ONI where i need to watch some tutorial about the game to get through the next step without doing only damage control for 200 cycles with no progressions XD. thank you for that tutorial, i was starting to get there by myself, but the math were not mathing and now they do ! I will definitely watch more videos to try and apply all these to my future attemps !!

[@MoonlitBrenya]

I've watched this video several times now, I've even made myself some diagrams to keep at hand and I just want to thank you for making this tutorial slash guide. Now I need to study up on aquatuners and steam power generators so I can cool all that beautiful oxygen before it gets dumped into my base. Great video, thanks again.

[@EchoRidgeGaming]

Thank you for the views and the comment!

[@sha46327]

Holy Rodriguez on steroids, Batman!! ... That was a fun series. XD Good stuff. Tyfs! Best of wishes to you and yours.

[@EchoRidgeGaming]

Thank you Ms. Sha Sha.

[@mellermeller1558]

This helped me alot in my colony and was the first spom I ever built

[@phatbman]

Great video! I just saw someone on the Facebook group ask about this so great timing!

[@EchoRidgeGaming]

Share it anywhere :)

[@phatbman]

@@EchoRidgeGaming I already sent everyone who has questions to your channel. Especially when they are general beginner questions. Your ultimate beginner guide is fantastic!

[@sethkaye7897]

very thankful for this excellent tutorial, i have over 600hrs in ONI and still found this helpfull

[@EchoRidgeGaming]

I am glad to hear it. Thank you for the comment.

[@OneOfDisease]

With automation I often find I am able to run my early bases off of the extra energy from my spoms. I prefer a single hydrogen pump and just 2 oxygen pump design. It uses far less energy, and it gets me off algae and hamster wheels. I keep the hamster wheels around until I just in case I overtax the limited design.

[@G.r.e.g.g.l.e.s]

SPOM: Thermium gas pump in a hot polluted oxygen vent going through a steam chamber under a steam turbine, into an auto-swept setup of ceramic deodorizers, powered by the heat of the vent. Don't @ me.

[@BigOldGrizzly2]

I have some hints for starting up these systems that mostly use the idea of building all the pipes and wires with breaks in them that you can later connect without actually having to build anything. For example if you build two wires next to each other as dots, you can later go back into the build wire menu and connect the wires and they instantly connect without any dupe work as long as they are all the same materials. Even if they are different materials they will instantly connect, you will just then need to cancel the build that would swap out the material. So using that idea, first route the hydrogen so that it runs down first, with an output between the bottom sensors that run the oxygen pumps. Then leave a break in the pipe before going up to the hydrogen generators. Once primed you can deconstruct this output and gas pipes from the bottom row where the oxygen pumps are and you won't disturb the primed hydrogen pump. This let's you prime the hydrogen pump area without using a tank because any hydrogen will just float back to the top especially if you use my next suggestion. I never connect all the wires to the oxidizers or pumps. Instead I build all the wire runs with breaks in them and single dot wires on the oxidizer or pump plug sockets. Then I can connect them as described above, one at a time. So if you connect just the left and right edge oxidizers, the hydrogen pump, and the left and right edge oxygen pumps, with the atmo sensors set to run full out, you will use less power to prime the system, AND it will prime surprisingly fast because the hydrogen gets used over and over again until it is primed. Using only the edge pumps there is little chance of sucking out the hydrogen before it goes back to the top. Once primed, deconstruct the hydrogen output from the bottom, then seal the last entrance, then connect all the wires to all the pumps and oxidizers using the zero dupe labor trick I described. And finally sett the end state atmo sensor limits. I think you will find this method primes things so much faster, without all the loose hydrogen, or having to build and destroy gas tanks.

[@V0dka-]

i have had problems making spoms forever and now my oxygen production will finally be stable!

[@ChaoticRain1]

you are the greatest teacher! thank you for these!

[@destwong]

the full rodriguez power can be connect to direly using heavy volt join plat and heavy volt wire and u can leave the 2 large transformer to power other thing in your base. i also like to induce a infinite gas storage to catch the overflow hydrogen and use it to power other stuff or just store it for a later date.

[@mastani.1444]

Thank you for the double bridge trick!

[@CostelloDamian]

great explanation. Although, you have forgotten to mention the most important key factor. Only one gas type can exist in the tile. This is why the 'entrance' to your hydrogen pump section are only one tile. Once hydrogen gets there it will not allow oxygen to go through acting as a no power filter making it possible for these systems to be net positive on the energy front

[@jannefock9337]

Instead of deconstructing the full gas reservoir at 31:41 I connect it to a pipe. The gases inside the reservoir will come out alternating between the different gases so every second blob will be hydrogen. You could work with pliers to seperate them all without power, but I just throw a powered gas filter. Also when starting the spom I like to let the hydrogen gather a bit more so I can hit equilibrium faster. Instead of transformers and heavy watt wire I split the power grid of a full Rodriguez to two. That way you use less metal. I remember doing some calculations for the cooling some time ago and came to the conclusion(99% sure) that with supercoolant aquatuner/steam turbine you can cool the oxygen with the excess hydrogen. That system will need a bigger buffer for the hydrogen and automation to not waste steam turbine power, but its possible.

[@DB-ft4cp]

Very nice explanations. I would have included some glitchy uses of electrolyzers, like stacking 500g of 2 liquids onto the electrolyzer making it produce seperated O2 and H2 regardless of gas pressure. this can be used in the early game (1 elecrolyzer in the middle of your base and siphoning the H2 from the top to generate guite a bit of electricity) and in the lategame (creating reservoirs of 3000 kgO2(orH2)/tile so you have more leeway when a system inevitably fails for some reason.

[@Spoonwood]

The full rodriguez doesn't need two large power transformers. It can instead run on three small/regular power transformers, with the two left electrolyzers on one circuit, the middle two electrolyzers and the hydrogen pump on another, and the right two electrolyers on the third circuit. Each circuit consumes 720 watts of power. That's enough to run a water sieve on one circuit, and two liquid pumps on the other two circuits. If a desalinator is used, that's when you need to either use a large power transformer, or use the excess hydrogen to power the desalinator. A full rodriguez can power all of the oxygen AND all atmosuit docks for duplicants who wear them other than when sleeping (and still have some excess hydrogen left over). Finally, if you're running liquid radiant pipes made out of copper over the gas pumps (I recommend cooling the oxygen pumps first, and then cooling the hydrogen pump also), with water coming from a polluted water vent or cooler (duplicant pee will even work for some of the input liquid), there is NO NEED to use insulated tiles around the system. In fact, all those insulated tiles slow down the building process. Instead, with input fluid from a polluted water vent or cooler (coming in through insulated liquid pipes probably made out of igneous rock), since the system isn't producing bunches of heat, you may as well make the tiles around the chamber out of something better looking and quicker to build. Like granite.

[@LalaLala-hk4wt]

I just made my first fullsize Rodriguez with cooling via steam turbine today! Thank u so much for your video! There are a lot of ONI KZbinr out there but for the most of them I'm just to stupid 😂 I always was very bad with maths and physics and stuff in school. But you can explain this and I understand it! Thank u! Greetings from Germany 👋

[@emmymurphy306]

Another one I like is the "3/4" Rodriguez, with 3 electrolyzers and 5 pumps. Fits together nicely in terms of tiles, you have to make it non-symmetrical but ok. You get 2 full pipes and one 500g pipe, which works great as a "top-up" line to fill the other two after a split-off to atmo-suits, oxylite, etc. The electrolyzers theoretically produce 2.55 kg, so the electrolyzer throughout almost exactly matches the gas pump throughput. But the best part: less than 2 kW, no transformers. Super easy to plug into your main grid in the late-game when you want the hydrogen for rocket fuel instead of power.

[@inmi3201]

Great tutorial, very informal, and I hope to build one soon. However, my brain hurts with all information!!

[@AndrooUK]

You say 'total throughput' at one point about the 'full Rodriguez' where you should really say 'maximum throughput' (or equivalent) to clarify to and/or remind people that it's still limited by the incoming water flow being sufficiently maintained, and oxygen actually able to be pushed through constantly with no blockages down the line.

[@MM-er6mr]

Thank You for this guide! You forgot the submerged SPOM.😉

[@stickyjum]

awesome video will 100% check out other ones you made, so helpful!

[@jemsterr]

FJ found on his last run that you actually get closer to max throughput if you drop the hydrogen pump down a tile and flatten the roof.

[@EchoRidgeGaming]

Hmm, I will have to try this.

[@AlexKasper]

For my mini-SPOM, I kind of cheat and use one set of mechanical filters per pump primed with H2 (with the initial help of a traditional filter). Once the O2 is passing, then the output pipes are merged. The O2 is later cooled with a thermoregulator (outside the SPOM power grid), which in turn is cooled with the incoming H2O pile fed into the electrolizer. So far it runs for hundreds of cycles. The overflow pipes fed into my infinite gas storage system. Nothing is wasted. 🙂

[@teodorpirnat8386]

"So if you're just looking for a basic system to run that you can build fast, yeah, still don't build this one" that killed me

[@MacManChomp]

Yooo, the advice to insulate the inbound water is backwards. If the water comes in below the output temp of 70°C that means that you're giving up free potential cooling. All water between 0c and 70c produce 70c gas from the electrolyzer, so if the water is below 70c then you could use that water to bring the gas temperature down. As long as the input source is under 70c, it's better to transfer heat into that water.

[@mountaingoat8270]

I’m having troubles with the 4 pump and 2 electrolyzer setup, my hydrogen keeps disappearing and oxygen always goes the the hydrogen pump

[@mountaingoat8270]

No matter what I set the pressures to, even the 450 for oxygen and 250 for hydrogen it always shoots packets of 2000+ oxygen up into my hydrogen pump

[@judas1337]

To reach equilibrium I like to place a Signal Switch on top of the opposite Airlock door from the Atmosensor, which when activated opens the two Airlock doors and stops the hydrogen Airpump utilizing a Not Gate. Keep the doors open until the top row of the Electrolyzers are covered in hydrogen.

[@christopherg2347]

28:55 Actually, why not make them radiant pipes? The output will _at least_ be 70°C. This is extra heat production, on top of what is stated. If you feed it 0°C water, that will be 70°C added. if you feed it 70°C water, that will be 0°C added. The closer you get them to the output temperature/output DTU total, the less overall heat it will produce. I mean it could still well be that just the generators and machinery add so much heat it will pass 100°C. But just cooling the oxygen earlier should be a powerful thing to keep it cooler.

[@ekimmak]

23:06 I actually made a bit of a mistake on my own LP with these airlocks. I was running the uninsulated oxygen pipes right past them, so all the work I put into cooling them down was absolutely wasted. The problem with having built it at the bottom of the world. Fortunately, I left enough space on either side that I could just install some extra insulated tiles and be done with it.

[@SpottedHares]

Surprised you didn’t cover the submerged version, but considering just how much that changes the SPOM it’s probably for the best.

[@danmama]

I was hoping to see the "Hydra" type of SPOM, where it's vertical and infinitely stackable design with included infinite storage for both gasses. That would solve any over supply of whatever gas you need. But it is using submerged electrolisers in 2 liquids, which you breefly mentioned as "glitchy", which you are not a fan of. I am planing on building that one, next opportunity I get.

[@davyhotch]

It helps to have it explained step by step. I was straight up confused as to why the oxygen production was not half the hydrogen. Guess chemistry doesn't match our world.

[@aaronthewalker]

YOU ARE FREACKING GENIUS!

[@pharina0085]

I love this tutorial, I learnt a lot! Thank you

[@doommustard8818]

I actually heard you should be cooling a bit with the incoming water (assuming your source is cooler than 80 degrees) because water takes more thermal energy to get hotter than oxygen or hydrogen. So cooling with the water coming in is a heat deleting system.

[@All_Night]

Yes you should be running radiant pipes though at least the pump area to cool the oxygen down, even if your not yet cooling the oxygen. Add the pipes so you can cool it later without have to break back in.

[@Ravendoh]

My thoughts exactly, i don't understand why he would opt for insulated pipes for incoming (cool) water

[@CF_Sapper]

Ah yes the before times of ONI, when certain liquids had funny properties, buildings did odd things when pushing the thermal limits. Liquid hydrogen required some really really odd mechanics to get, and it was possible to get solid hydrogen and brick a carefully constructed system, wheezeworts did some very peculiar things that could be abused.

[@FerrybigGaming]

4:24 is is posible to build a spom with a gas filter, you just need to bunch up the packets in the pipe correctly. You do not want the small hydrogen packets to pass though the gas filter as it is a waste of power. My early game spom uses a gas filter because it is easy to prime compared to other solutions, and never needs extra power after, even after like 100 cycles

[@damonthomas9374]

i know this is vanilla but if you go to the steam workshop, theres a advanced electrolizer where the gases are outputted through pipes already so no reasons for the air pumps

[@austinskaggs1852]

Little late to watching this one, but always enjot the videos man! hopefully the new PC is treating you nicely! Won't have all my parts until mid march.

[@yeldarb141983]

...I came looking for information on basic O2 production and now I not only know what a SPOM is, I have a pretty good idea how to try (and fail, lol) to make one of the more advanced designs, lol.

[@ekimmak]

34:19 The .88 doesn't seem that important, but there's two things to it. One is that when you start bringing back a lot of coffee mugs, you might be able to get deep diver's lungs on everyone, giving them a nice reduction in oxygen consumption. The other is that it's nice to have a bit of excess production, to make up for when things might go horribly wrong, like misjudging water production and sending too much to the oil biome, leaving not enough for the SPOM.

[@EchoRidgeGaming]

I like the bit about the diver's lungs for everybody.

[@krahvata]

Im a new player and my main problem is how to run even one electrolyser with a constant stream of renewable water. I tried making a water sieve + washroom loop that also feeds the electrolyser but theres not enough water to constantly sustain both systems and the amount of hydrogen produced barely activates the generator. I also tried hooking up a carbon skimmer and a sieve into the room where the generator is but of course, it runs out of carbon monoxide to filter.

[@bob8mybobbob]

If you’re tight on refined metals 3 small transformers works just as well. For the power hookup I like 3 gas pumps + 2 electrolyzers / 4 gas pumps / 2 electrolyzers + water feeders (if close by).

[@_kal._]

Thank you so much Echo!

[@EchoRidgeGaming]

No thank you!

[@danbance5799]

The big thing I do differently is I use an aquatuner to preheat the water going in up to 101c. The aquatuner then provides cooling to the gas or to my base, no steam turbine required. The aquatuner can be made out of any metal ore because it's not going above it's overheat temp. The big advantage is that you get a great cooling system early game, well before you have access to plastics or steel, and there's enough hydrogen produced to power the AT as well as the rest of the SPOM. The other big thing I do differently is set it up to run off the main grid so the hydrogen can easily be used to power rockets later. Technically, I guess that makes it not a SPOM, but semantics, whatever.

[@Y2KNW]

If I'm providing

[@jpbroadwater]

Wow I can't believe I couldn't figure this out myself ;-)

[@DRY411S]

What isn't obvious at all is why these are power positive. With the build at 17:05 , 2 electrolyzers and 3 pumps require 960W power but you're using only 1 of the hydrogen generators rated at 800W. I think that the answer is because although the electrolyzers can generate 1776g of oxygen, the pumps are running at only 1000g so the whole system is only running at 1000/1776 = 56% of the time. 56% of 960W is 541W. Only 56% of the 224g of hydrogen is being produced = 126g. That's more than enough to supply the hydrogen generator which needs only 100g to generate 800W, and to generate 541W only 68 is needed. So you have 58g excess hydrogen that can supply your main base = 464W. Have I got that right?

[@eduardvonheizenstein3969]

I was wondering the same, but that might explain it

[@llPennywise]

disabeling the hydrogen pump during startup untill the top half of the spom is filled with hydrogen makes it way faster - after that you only have to pump out 2 tiles of not-hydrogen underneath the pump which - depending on the pressure - will take only a few pumps to clear out

[@goodolarchie]

The prospect of consuming 100g of any gas per second is crazy. At atmospheric pressure and room temp that is like a home of oxygen, per second.

[@CraziFuzzy]

I really hate the fact that the various generators don't actually consume oxygen - which is the only reason the SPOM is even a thing.

[@brianreese6384]

Insulating the water pipes is a mistake so long has your water is coming in cooler than around 55 degrees. If feeding 30 degrees Celsius water, I usually use a small loop of radiant pipes to allow the water coming in to cool off the oxygen going out before it leaves the system. This actually saves cooling by reducing the total heat the electroliser generates, since they have a minimum output temperature.

[@brianreese6384]

Also, a better solution to the "buffer" gas tank is to make a simple automation filter to dump oxygen out of the hydrogen line and into the lower compartment. This is easily done with a gas pipe element sensor set to hydrogen connected to a not gate which then connects to a gas vent. All of which is located just below the hydrogen pump. Doing so makes would make the system self priming.

[@bug254]

KLEI should hire you, just saying ❤

[@Vyrewolf]

I'm personally a fan of power free filters, made from bridges, a valve, and a loop of 1g gas.

[@stainedglassstories7735]

I'm trying to understand if there's a particular reason that the full volume of gases from the electrolizers can be pulled out in the half-Rodriguez, but no one adds an 7th o2 pump at the bottom to do so in the full-Rodriguez. For that matter, I'm also wondering why with the excess power available, no one just includes filters on their outputs just in case.

[@TheSpudLord]

I love your videos

[@EchoRidgeGaming]

Thank you!

[@borisjulinuv2776]

thanks you i was looking for a non exploity way of doing a SPOM

[@joeblack4436]

The number of Electrolyzers in the Rodriguez shown should make enough O2 for 7 pumps. It seems as if a slight modification could improve it. Though of course I understand the appeal of having an even number of pumps. Also. A good SPOM makes more than enough power to have gas filters on all outputs both O2 and H2. Especially if you have the H2 generators chipped with Engie's. Then also it's easy to get cooling right in the SPOM and heat up polluted water or brine from a slush geyser just enough to sieve it and make water at the right temperature for Sleat Wheat.

[@quantum2330]

why do you have a battery in here? also you can use a water trap setup around your electrolyzes to separate out hydrogen and oxygen, its a bit finicky to set up but once its working it just works, this means you don't need as many gas filters, or pumps, as air can escape directly into the base, the setup also prevents electroliers from being over pressured so keep that in mind don't let duplicates breath in neat the water trap solution since carbon can clog up the system and beak it

[@willonapop6184]

Have you seen brothgars videos? I remember him making a similar system way back when ONI was an early access.

[@jonnydiaz9021]

Love the video. Helped me just in time. Though I used that smaller version. The 12 tile wide design. Hydrogen keeps getting into my base. Is my base just too big?

[@johnx140]

17:52 youre modafoking telling me... THIS GAME HAS HISTORY NOW?!??!!