Sunday morning, walk down to the basement for cat food. Cellar smells of beer. I checked the kegs sitting in the corner and see about 1 gallon of beer on the floor.
A slow leak from the beer out poppet. Damn! Black lager puddle.
I don’t have a frig or kegerator for my beer, so I usually slap on a cobra tap to fill a growler or 2-liter with a carbonator cap and chill in the frig. Once filled, I pull off the tap and flush out with star san.
I wiped down the beer post and thought all was good. I guess next time I’ll start spraying the post with starsan and look for leaks when pulling off the tap.
I had something similar (at least a little similar) happen after I took a keg to a party. There was around 2 gallons left and I just disconnected the cobra tap and the CO2 tank and walked away. There was apparently a small leak on the gas in side. The next time I hooked the keg up it was completely flat and had started to grow some really nasty stuff inside the keg.
Since then I check the seals with Starsan every time I disconnect things.