There are ways to remove extra liquids/gasses, it's called the Clarifier, but I, personally, fine that too obtrusive.
I have a mod called "Fluid Void", that completely removes liquids/gasses the enter it, every ~5 seconds, or so.
If you can't add mods, or don't wish to, use the Clarifier, but if you can, and feel it's legitimate, add "Fluid Void".
That's how I get rid of excess products, and it may be cheating, but it works.
\Thank you for your time.\