Thank you, oxygen_large and compressor looking great too.
Thanks to you and @JakXLT for spotting the issues, I'll fix those today. It's correct that the the Distributor does take a lot of oxygen when it's working - that's the same amount it would take out of pipes - but obviously it needs to stop taking oxygen when it gets full.
The liquid -> gas conversion ratio we are using is that 1 Canister of Liquid Oxygen (which is equivalent to 1 bucket of liquid) makes enough oxygen to fill 4 heavy oxygen tanks. A player can refill a heavy oxygen tank from a canister in the player's crafting inventory, so that's a space-efficient way to take some spare oxygen along with you. (I need to add a recipe so that tanks can be filled from the infinite oxygen canister too.)
The GUI for the Oxygen Storage Module, I'm not sure about the second slot - I don't see that machine filling any oxygen items. The infinite oxygen item can't be filled, and a regular Canister of Liquid Oxygen will need to be filled from a Gas Liquefier as it needs liquid oxygen. I haven't yet decided whether the player oxygen gas tanks should be able to fill machines with oxygen (not very useful, as even a heavy tank does not hold much gas compared with a single Canister of Liquid Oxygen) - but even if the tanks can fill machines, we won't want the tanks to be fillable from the Oxygen Storage Module, as that would make the Compressor useless.
Final comment, uniting the Oxygen Distributor and the Sealer is not possible, those are two of the most complex machines in Galacticraft (programming wise), and I also think they are hard to learn for players new to Galacticraft so I wouldn't want to make any dramatic changes to them.
Thanks to you and @JakXLT for spotting the issues, I'll fix those today. It's correct that the the Distributor does take a lot of oxygen when it's working - that's the same amount it would take out of pipes - but obviously it needs to stop taking oxygen when it gets full.
The liquid -> gas conversion ratio we are using is that 1 Canister of Liquid Oxygen (which is equivalent to 1 bucket of liquid) makes enough oxygen to fill 4 heavy oxygen tanks. A player can refill a heavy oxygen tank from a canister in the player's crafting inventory, so that's a space-efficient way to take some spare oxygen along with you. (I need to add a recipe so that tanks can be filled from the infinite oxygen canister too.)
The GUI for the Oxygen Storage Module, I'm not sure about the second slot - I don't see that machine filling any oxygen items. The infinite oxygen item can't be filled, and a regular Canister of Liquid Oxygen will need to be filled from a Gas Liquefier as it needs liquid oxygen. I haven't yet decided whether the player oxygen gas tanks should be able to fill machines with oxygen (not very useful, as even a heavy tank does not hold much gas compared with a single Canister of Liquid Oxygen) - but even if the tanks can fill machines, we won't want the tanks to be fillable from the Oxygen Storage Module, as that would make the Compressor useless.
Final comment, uniting the Oxygen Distributor and the Sealer is not possible, those are two of the most complex machines in Galacticraft (programming wise), and I also think they are hard to learn for players new to Galacticraft so I wouldn't want to make any dramatic changes to them.