Oxygen is a gas so set the output on the gas tab with the exclation mark. I think it was the yellow tab in your 2nd screenshot. The outputs you've set is for items. Answer from ashrat_ on reddit.com
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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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Stack Exchange
gaming.stackexchange.com › questions › 290854 › emptying-an-electrolytic-separator-in-mekanism
minecraft java edition minecraft feed the beast - Emptying an electrolytic separator in mekanism? - Arqade
November 10, 2016 - 2) You can move the separator to be touching the elite factory, eliminating the need for a pipe. Either of these should fix the issue. ... Thanks self! I used the configurator on each edge of the pipe, setting it to pull the oxygen and push ...
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GitHub
github.com › mekanism › Mekanism › issues › 7693
The Electrolytic Separator can't output oxygen to the Purification Chamber · Issue #7693 · mekanism/Mekanism
January 2, 2023 - Issue description settings of my electrolytic separator, I out put the oxygen gas at the right, then I access the Basic Pressurized Tube at the right of machine, settings of my purification chamber, and all the interface is set to the "i...
Author   mekanism
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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
If you are only using a single gas, selecting "dump" for the unused gas will vent it to the environment, preventing that internal tank from filling completely and stopping the Separator. Since Mekanism 7.1 (Minecraft 1.7.10) the Electrolytic Separator requires 400 joules of power per tick, or 160 FE per tick.
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Reddit
reddit.com › r/feedthebeast › how do i get my electrolytic separator to make oxygen?
r/feedthebeast on Reddit: How do I get my electrolytic separator to make oxygen?
February 22, 2021 - You can either put a Gas Tank (4 Osmium and 4 Redstone, I think) into the Separator under the Oxygen gauge to collect the Oxygen or use Pressurized Pipes (again, I think, I can't verify right now) to pipe the Oxygen out of the Separator into ...
Find elsewhere
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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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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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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
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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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Instructables
instructables.com › workshop › science
Separate Hydrogen and Oxygen From Water Through Electrolysis : 7 Steps (with Pictures) - Instructables
November 11, 2017 - Separate Hydrogen and Oxygen From Water Through Electrolysis: Electrolysis a method of separating elements by pushing an electric current through a compound. It is used in various industrial applications such as removing copper from its ore. It is also used to separate hydrogen and oxygen from ...
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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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Iere
iere.org › home › how do you break oxygen from water?
How do you break oxygen from water? - The Institute for Environmental Research and Education
November 18, 2025 - Submerge the electrodes in the electrolytic solution. Connect the electrodes to the power source. Observe the formation of bubbles at each electrode. Oxygen gas will evolve at the anode (positive electrode), and hydrogen gas will evolve at the cathode (negative electrode).
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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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Reddit
reddit.com › r › allthemods › comments › 1cj3z1u › how_to_output_oxygen_from_electrolytic_separator
How to output oxygen from electrolytic separator to basic ...
May 3, 2024 - Large electrolytic separator tips in Mekanism · Top Minecraft mods for enhancing gameplay · Best modpacks for beginners in Minecraft · Unique Minecraft builds inspired by modpacks · Join our Discord · for more help and view our Modpacks on Curseforge · Public · Anyone can view, post, ...