So i started a brew today and have noticed a slight leak from the tap, i have the last couple of nights had water sitting in it with out any leakage but now I have my brew in it it does, iv closed the tap but not pushed it too far as in fear that could start opening it again as I work with valves at work and experience this all the time. Its a brand new kit i cant see where the leak is as its so minute. So my question is will this affect the brew ???