So, in another thread, @mathmanican was trying to help me figure out how a certain style of infinite liquid storage failed on me. So I figure I'll make a thread to look into that and to talk about infinite gas and liquid storage in general.
First up is the system that failed on me.
Here is another version of infinite liquid storage I use. I like this one because it's easier to set up and fits in my 4 tall hallway design.
Lastly, here's my main method for infinite gas storage.