FSPOM Hydra | Oxygen Not Included Guide

Welcome to the ultimate Oxygen Not Included guide! In this tutorial, we dive deep into creating the perfect oxygen machine using the FSPOM Hydra design. Learn how to set up a flooded SPOM and master the art of efficient oxygen production. Whether you're new to SPOM setups or looking to optimize your base, this guide has got you covered. Watch now to become a pro at Oxygen Not Included!

CHAPTERS
0:00 Intro
0:33 SPOM 101
1:08 The Numbers
2:44 Hydra Theory
5:09 Research Prerequisites
5:38 Basic Hydra Construction
15:27 Operation Explanation
16:47 Infinite Gas Storage
17:58 Final Thoughts
18:30 Overlays
18:45 Quad Overlays
19:00 Conclusion

[jAfrThunder]

Air vents have an overpressure. 2 kg for regular and 20 for high pressure gas vents. When using liquids to create infinite storage, keep the mass of liquid under the weight of the gas vent overpressure to prevent flooding status.

[yaki_ebiko]

Side note, if you try to build one in an already vaccumed room, do not use polluted water as the bottom layer, use brine or salt water instead🥲

[tarsis]

OK, clear and concise. This is good. Shows overlays AND reverse overlays for those of us whose brains won't do it on the fly. I use FSPOMs a lot, but this build is better than mine.

Should you care to do another tutorial, something I could use is a kitchen with deep freeze and automation. I have tried my own, and I have tried others I have seen in videos, but I have never been happy with any of them. Should it be near the great hall? Does it really matter? Should I not cook X food and save it for later? That is a thing I would build my whole base around if I had a good one to start with.

Have a sub, you earned it.

[ThePrimeMinisterOfTheBlock]

There are a couple of things I could do to improve it further. I build these things for the long term, so I'd double insulate it. A single layer of insulation will eventually heat up to 75 degrees, after a few hundred cycles, but heat transfer between two insulated tiles will take much much longer. The other thing you could consider is buffering your inputs and outputs with reservoirs and a bit of automation. I'm not a fan of paying full price for a water pump that's only moving a fraction of it's capacity.

[CasualGuidesRS]

I have used the single electro dumping air out in so many bases its phenomenal and way easy to add more 'nodes' enjoying looking at this hefty beast too

[dviousdom]

I really enjoy listening to your explanations! Very Clear, Concise and not over bearing with information.

[AlexKasper]

Very good, I like it!
I've using the horizontal version of the Hydra (O2 on top and H2 on bottom) for a while now (9 tiles tall or equivalent to 2-4-tile floors) H2 feeds to a separate room that's a power plant and that powers up the entire base (for the corresponding Achievement). The water to be split is piped across the O2 chamber to try to cool it down a bit using a bunch of radiant pipes, it works very nice as the O2 is a dash higher than 30 °C, which can be later cooled down by other means. There is a ante-chamber on the side that contains a couple of mechanical filters, a water tank and a H2 tank as backups, with a liquid drop and a door, so the whole thing is serviceable and expandable (horizontally).
I remembered reaching 1000 kg of pressure in the O2/H2 chambers in my later games.

[ThePrimeMinisterOfTheBlock]

This is an excellent video. I shall watch your career with great interest.

[camerondavies]

Very noice, i got back into this game and built my first Rodriguez a few days but that was at cycle 25, i done it way to early i realised so it sits there as a relic. And now this design comes into light, brilliant game.

[jeremyr.]

Quad Hydra Tested on Ceres with Frosty DLC : As the freeze of water in 0 you might have issue to prime electrolysers.
You need a bottom layer of hot crude oil and brine or polluted water with positive value and more than 100g (like 500g on two both top layer).
Please do not close it immediatly and sweep any glass or materials if it failed, try again. Do not overpressure the electrolyser and save a lot of time your game.

[TheAntoine]

I'd have never imagined somebody would make the Rodriguez better! 🤯

[Tamizushi]

To me the most obvious improvement I see would be treat the whole SPOM as dispatchable energy generation. Dispatchable energy generation is generation that can be turned on and off to compensate for variable sources of energy, such as solar, as well as variation in energy demand. If you fully integrate your SPOM into the grid, then you can power it with solar during the day, saving up the hydrogen to be used by the whole grid during the night.

I'm a big proponent of using manual generators late into the game. Manual generators are technically variable sources of energy since dupes need to take breaks to pee, sleep and eat. Assuming you have enough food to sustain them, you can easily hook up a bunch of manual generators to your grid, still using hydrogen as backup. Overtime, your dupes will train up their athletics and mechanical and when they reach level 20, you can reassign them into any other work. Assuming duplicants work 80% of the time, a manual generator effectively turns 100g/s of oxygen (plus 1000kcals/cycle of food) into 40g/s of hydrogen. In addition, duplicants will pee at least once per cycle, which will refund between 10% and 35% of their water usage (depending on schedule and hygiene level).

[ilikespagett]

i did the wiring different, i hooked up the gens w heavy watt wires to my main grid, but i left the battery since if the grid somehow runs out of power, the spom will be able to run longer. this does require you to have the battery controlling the generators to be attached to the main grid tho

cool design, but for some reason the water gets pushed over to the side by the electrolyzers into 1 tile. i did put in 100kg per tile like the vid said. the gases were primed with 2.2kg on hydrogen side and 4.8kg on oxygen by accident. gonna try to reduce the oxygen side, if that doesnt work ill have to break in again and try to add more water

edit: my dumbass forgot the airflow tile underneath the electrolyzer

[dumbbuckets]

You could use less airflow tiles. You only really need 2 per electrolyzer (unless someone does it with less). Also, I'd recommend crude oil or petroleum instead of water for infinite storage purposes. Dont want your water to turn to steam.

[wittkopdotzgaming]

Very interesting Hydra setup, my good man. May I perhaps know if the hydra requires priming first?

[APS_Inc]

Others have already mentioned it but you always want to use radiant pipes (gas or liquid) inside the SPOM for cooling. It may not look "cool" but as long as it keeps the machines from overheating from their own waste heat that's what matters, otherwise they'll potentially cook themselves, especially since gold amalgam is a poor conductor and will not exchange heat well with the gasses inside the spom

[stephengeary]

You should do a video on how to set a early hydra up so peaple can see how a oxygen pump less hydra works for early small base supply that let's u get tech other then automation going like ranching then how to go back in and add automation using liquid locks

[RothAnim]

Alternate priming suggestion: Use a gas storage tank instead of a vent when vacuuming out the storage. That way you can fire up the electrolyzers in the SPOM for a bit of hydrogen, and oxygen. When the room's vaccumed, run the tank contents through your filters to prime the rooms.

This will eliminate the need for a seperate external elecrolyzer, and also bypass any pressure issues you might have before getting the plastic to make high pressure vents.

[chrisderdude]

for some reason my upper electrolier keeps getting flooded. The amount of polluted is at around 900kg... Any ideas??? Great build by the way ;)

[fruity]

i never pre-prime a hydra and it was always fine (altho the design i useally use is a bit different then how this one looks), i make sure to save before piping the water for the first time, but everytime i have to reload a save it was because of some dumb mistake like building it wrong or not having enough liquid/liquids that arent viscose enough, pre-priming the chambers with the gases couldn't have saved me anyway