New to kegging. Tried to carb a beer by loading it up with co2 so my buddies could have some in a few days; now the the CO2 gauge is stuck at 20. On the back of the gauge there are two screws which I am hoping if I mess with it will re-set. I thought I would post here first for assistance before I destroy anything. Is it possible to have the gauge reset to 0 if so any ideas how? Thanks!