Mekanism as far as I know doesn't let you place machines right next to the other and have that as input and output. As far as I know and have been doing for years, you'll need rego mek pipes or pipez mod pipes. Also use a configurator if you can make that so you can easily change input and output sides with a shift click. If you have more questions feel free to ask, im a mekanism mad scientist. Answer from DickDastardly0 on reddit.com
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Mekanism Wiki
wiki.aidancbrady.com › wiki › Electrolytic_Separator
Electrolytic Separator - Official Mekanism Wiki
Typically the first application of the Electrolytic Separator is in the electrolyzing of water into Hydrogen and Oxygen.
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Feed The Beast Wiki
ftb.fandom.com › wiki › Electrolytic_Separator
Electrolytic Separator - Official Feed The Beast Wiki
The Electrolytic Separator is a block added by Mekanism. It is used to separate fluids into their component elements. ... The Electrolytic Separator (middle) decomposes water, delivered by an Electric Pump on the right, into hydrogen and oxygen.
Discussions

How do I pass hydrogen from the electrolytic separator to the pressurized reaction chamber?
Mekanism as far as I know doesn't let you place machines right next to the other and have that as input and output. As far as I know and have been doing for years, you'll need rego mek pipes or pipez mod pipes. Also use a configurator if you can make that so you can easily change input and output sides with a shift click. If you have more questions feel free to ask, im a mekanism mad scientist. More on reddit.com
🌐 r/Mekanism
4
2
May 6, 2023
1.19 Electrolytic Separator doesn't output gases according to configuration
Issue description I don't know if this is intended behavior, but seems like a bug to me. Set the right side to output hydrogen and it doesn't work. Set the left side to output hydrogen and ... More on github.com
🌐 github.com
1
May 18, 2023
How do I get rid of excess hydrogen from my electrolytic separator?
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🌐 r/allthemods
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February 21, 2025
minecraft java edition minecraft feed the beast - Emptying an electrolytic separator in mekanism? - Arqade
I'm trying to set up a 3x ore processing system in the FTB-Hermit-Pack.On the wiki, the electrolytic separator is said to have two differently colored tanks on each side, but the new textures for mekanism 1.10 take away the colors, so I am unsure if I'm even setting this up right. More on gaming.stackexchange.com
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November 10, 2016
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YouTube
youtube.com › zl
Mekanism in 60 Seconds: Electrolytic Separator - YouTube
Create Hydrogen (and other gases) using the Electrolytic Separator from Mekanism (Modded Minecraft/FTB) -- it won't take a minute!Hate long boring tutorials?...
Published   December 2, 2020
Views   71K
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YouTube
youtube.com › watch
Mekanism: Electrolytic Separator (how to get hydrogen + More) - YouTube
AboutPressCopyrightContact usCreatorsAdvertiseDevelopersTermsPrivacyPolicy & SafetyHow YouTube worksTest new featuresNFL Sunday Ticket · © 2026 Google LLC
Published   December 25, 2022
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GitHub
github.com › mekanism › Mekanism › issues › 7789
1.19 Electrolytic Separator doesn't output gases according to configuration · Issue #7789 · mekanism/Mekanism
May 18, 2023 - Issue description I don't know if this is intended behavior, but seems like a bug to me. Set the right side to output hydrogen and it doesn't work. Set the left side to output hydrogen and it's fine. I know the internal tanks are Hydroge...
Author   mekanism
Find elsewhere
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Reddit
reddit.com › r/allthemods › electrolytic separator output sides.
r/allthemods on Reddit: Electrolytic separator output sides.
November 24, 2016 - On the left side, I placed a Gas Generator (GG) to burn the hydrogen. Either the Electrolytic Separator (ES) is auto-ejecting into the GG, or else the GG is 'pulling' from the ES. I believe Mek has some quirks/bugs as related to gases and certain machines. I believe most/all of these can be solved by using Mek gas tanks (instead of pipes) directly on the machine. ... Did you set the pressurized pipe to extract with the Configurator from that side? My experience thus far with Mekanism is that fluid machines never auto-eject.
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YouTube
youtube.com › watch
How to get Hydrogen & Oxygen in Mekanism - YouTube
Complete tutorial for getting Hydrogen & Oxygen in the Mekanism mod for Minecraft, using the electrolytic separator machine.MEKANISM PLAYLIST - https://www.y...
Published   August 7, 2024
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YouTube
youtube.com › onlydraven gaming
Minecraft - Sky Factory 4 - How to Use an Electrolytic Separator to Make Hydrogen and Other Gasses - YouTube
This Minecraft Sky Factory 4 tutorial shows how to build a very basic Fission Reactor from the Nuclearcraft mod. I also give just a brief review of some of t...
Published   September 8, 2019
Views   22K
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Voltz Wiki
voltzwiki.com › wiki › Electrolytic_Separator
Electrolytic Separator - Official Voltz Wiki
The Electrolytic Separator is a machine that produces oxygen and hydrogen from water and electricity. Hydrogen is used in Hydrogen Generators to generate electricity, Hydrogen can be stored in Storage Tanks or connected directly to the Hydrogen Generator. Categories: Blocks · Mekanism ·
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GitHub
github.com › aidancbrady › Mekanism › issues › 2575
Electrolyctic Separator not working · Issue #2575 · mekanism/Mekanism
April 22, 2015 - Hi! First of all, i love your mod. Second, when i place down an Electrolyctic Separator, water pumping in through the top and power from the back, it doesnt work. No Hydrogen or Oxygen appears inside the GUI. I know what you are thinking...
Author   mekanism
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GitHub
github.com › mekanism › Mekanism › issues › 3041
Electrolytic Separator vs Hydrogen Generator loop ( balance desired?) O2 only options? · Issue #3041 · mekanism/Mekanism
December 16, 2015 - RE Issue: #2743 2743 #1037 1037 I would love it if this was re-examened and new options put in ... I feel there is a major imbalance in energy usage vs generation. Right now the seperator does not benifit from the lower power usage that ...
Author   mekanism
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Voltz Wiki
voltzwiki.com › wiki › Hydrogen_Generator
Hydrogen Generator - Official Voltz Wiki
The Hydrogen Generator is a machine that generates electricity from hydrogen. It is fueled by hydrogen produced in a electrolytic separator: 160 kJ of power will be produced from 1600 units of hydrogen (a full storage tank).
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Feed The Beast
forum.feed-the-beast.com › forums › feed the beast › mods › mod discussion
Mekanism Help! | Feed The Beast - FTB Forum
October 7, 2014 - If this is 1.7 you need to update Mek, at one point it was "bugged" and you needed 20 Electrolytic Seps just to run 1 purification chamber with 9/9 upgrades in it (nvm factories). Although in fixing that they went the completely opposite way and now it doesn't consume any oxygen in the process · Click to expand... What? This doesnt sound right because I am on the most current version of Mek (Mekanism-1.7.10-7.1.0.92) and my purification chamber ran out of oxygen last night because I let the hydrogen buffer tank get filled up.
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Reddit
reddit.com › r/mekanism › hydrogen and cursed electrolytic separator
r/Mekanism on Reddit: Hydrogen and cursed electrolytic Separator
January 19, 2024 -

As we everybody knows mekanism remove recipe for making hydrogen from water in electolytic separator it doesnt take water anymore only heavy water and it make deuterium and oxygen so i can make oxygen okay but i rly dont know how to make hydrogen also why they remove this recipe ? im rly tilted becouse i like this mod for a looong time and this is sad and also making me angry can you somebody tell me how to get hydrogen by a different way or what to do becouse without hydrogen i cant make so much things . Im playing minecraft modded server 1.20.1 mekanism version is 10.4.5.

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GitHub
github.com › mekanism › Mekanism › issues › 2743
Electrolytic Separator not responding to energy upgrades · Issue #2743 · mekanism/Mekanism
June 13, 2015 - The Electrolytic Separator, when separating Water into Hydrogen and Oxygen gas, does not respond to Energy Upgrades. Other machines do. The Electroylytic Separator is being powered by Advanced Univ...
Author   mekanism
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Minecraft Forum
minecraftforum.net › home › minecraft forum › mapping and modding: java edition › minecraft mods › mods discussion › mekanism mod help!
Mekanism Mod Help! - Mods Discussion - Minecraft Mods - Mapping and Modding: Java Edition - Minecraft Forum - Minecraft Forum
November 10, 2016 - I tried using an electric pump by setting it on water surface and even tried 1 block above water surface. It say says "No fluid". I need a system that powers the pump, and connects the pump to the Electrolytic Separator. Secondly, how do I determine the oxygen and hydrogen side of the Electrolytic ...