This is where Extracells excells IMO. Even if you don't store the liquids IN the system(which is kinda dull, sure), you can monitor levels and output redstone signals to toggle farms/pumps/whatever on and off.I'm trying to use it for is to store my excess mob essence, as I explained earlier I have many machines that use it would be nice if after a certain amount my mob farm would shut down it will also allow me to lose less of my actual liquids