That didn't really help, i looked it up on google and couldn't find an exact answer. Isn't anyone nice enough to just tell me what it is?You see, instead of wasting your time with that "let me google that for you" thing you could have just made a simple, straight-forward answer to my question.
I've always had that "valve is leaking stuff on purpose" thing on my mind, but never really told anyone about it because i thought it seemed a bit stupid, but weirdly possible at the same time.