Just got into kegging finally. Have a few beers in kegs at the moment while I'm hunting down a chest freezer. I purged the air out of the kegs and put them on 20lbs just to seal the lids.
My question is: I've gone back about a week later and just pulled the relief valves (I'm new to this so I can't keep my hands away). Some of my kegs have pressure, some do not. Is this most likely due to the CO2 going into solution and equalizing or do you think that my posts are leaking? Thanks