On the hydrogen side in the gui, there is a dump button/setting, that'll let you run it only outputting oxygen. Answer from Fat-Knacker on reddit.com
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Reddit
reddit.com › r/allthemods › electrolytic separator output sides.
r/allthemods on Reddit: Electrolytic separator output sides.
November 24, 2016 - Assuming the water input is the 'front' face, my oxygen is coming out the right side, auto-ejecting into a Mek gas tank. 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.
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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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Mekanism Wiki
wiki.aidancbrady.com › wiki › Electrolytic_Separator
Electrolytic Separator - Official Mekanism Wiki
The Electrolytic Separator requires a constant supply of power and must have a source of a suitable liquid in order to produce the gases. As the liquid is electrolyzed, the component gases will be stored in its internal tanks. Should either tank fill completely, the Separator will turn off.
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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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Feed The Beast Wiki
ftb.fandom.com › wiki › Electrolytic_Separator
Electrolytic Separator - Official Feed The Beast Wiki
For example, when separating Water, hydrogen and oxygen are extracted through the left and right sides respectively. If at least one of the internal product storage buffers is full and no product is removed, the machine stops working.
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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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Reddit
reddit.com › r/feedthebeast › having some seeious trouble with the electrolytic separator in project ozone lite. i can get it to produce oxygen and hydrogen. the problem arises when i try to get the two gasses into the machine that makes the item for the last quest on the mech line. the oxygen will go fine.
r/feedthebeast on Reddit: Having some seeious trouble with the electrolytic separator in Project Ozone Lite. I can get it to produce oxygen and hydrogen. The problem arises when I try to get the two gasses into the machine that makes the item for the last quest on the mech line. The oxygen will go fine.
February 15, 2020 -

The Hydrogen, though, simply won’t move. I’m using pressurized fluid tubes. I feel like I have everything set up correctly but nothing happens to the hydrogen. If I place a tank beside the ES, the hydrogen does go in, but I can’t figure out how to get it from there. It’s frustrating the bejebus out of me and I had to rage quit about an hour ago. It’s got plenty of power and neither the oxygen nor the hydrogen are completely filling their respective slots in the machine so it should still be running. What do I do?!

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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
Find elsewhere
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YouTube
youtube.com › watch
HOW THE ELECTROLYTIC SEPARATOR WORKS IN MEKANISM - YouTube
Learn how the Electrolytic Separator works in Mekanism. Learn step-by-step how to use items, obtain materials, and master the Mekanism mod in Minecraft. Opti...
Published   September 8, 2025
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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 - 1.19 Electrolytic Separator doesn't ... · 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....
Author   mekanism
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Voltz Wiki
voltz.fandom.com › wiki › Electrolytic_Separator
Electrolytic Separator | Voltz Wiki | Fandom
March 18, 2026 - The Electrolytic Separator is often used in conjunction with the Hydrogen Generator to separate the water into two elements. There are some configuration options in the latest version of Voltz, 1.1.3, such as a dump feature which allows the player to dump the selected gas out of the separator, leaving the Storage Tank and Gas tank useless.
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Physics Forums
physicsforums.com › engineering › materials and chemical engineering
Separating H2 from O2 after electrolysis • Physics Forums
May 20, 2021 - ... The easiest way would be to chemically combine the H##_2## and O##_2## into H##_2##O, then electrolyze the H##_2##O in an apparatus where the two gases are separated. A harder way would be use high speed centrifuges similar to those used ...
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Reddit
reddit.com › r/testpackpleaseignore › incoming changes to electrolytic separator and hydrogen generation
r/TestPackPleaseIgnore on Reddit: Incoming changes to Electrolytic Separator and Hydrogen generation
May 9, 2014 - Granted, that is really stupid ... a few weeks or something. ... If you do not need the hydrogen, run 2 generators for each separator and use them to power it....
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Quora
quora.com › How-do-you-separate-hydrogen-from-oxygen-after-electrolysis
How to separate hydrogen from oxygen after electrolysis - Quora
Answer (1 of 5): If you use it for hobby and if it is not strictly necessary that obtaining pure hydrogen, you can use solubulity difference of hydrogen and oxygen. In 20 Celcius oxygen is 27 times more soluble than hydrogen so after electrolysis you can pass through your gaseous mixture into pur...