Originally Posted by Cheesefood
OK, a lot of thoughts about what to do are in this thread.
I too am using the ambient temperature cooling method in the garage. I'm probably going to be in the 40-50 range.
So originally I had it set at 20lbs, but then I read this and saw that that was too high, so I turned it down to about 8lbs. I'm keeping the CO2 tank on - right or wrong? Just let it sit for a few days at 8 lbs should do fine for a hefe, right?
Basic physics at work that not even the might of the Al Gore internet can override.
There's no reason to ever disconnect the CO2 from a keg- other than when it's out of service or open.
If your beer sat at 20 psi and became truly saturated with CO2, it will take quite a while for that excess gas to come back out of solution with the keg at 8 psi.
Having said that 8 psi for a hefeweizen sounds too low. I keep mine at 15, but at 40*F on a balanced system.