I'm having a problem with my CO2 regulator. It was connected to a 5 lb tank which I tipped over, breaking off the stem that connects the regulator to the tank. I went to a welding supply shop and got a new stem which fits just fine and hooked it up to my tank, and attached to a keg to carbonate a beer. The only difference between the stems was that the original one had a small brass insert that looks like it might have been there to restrict some of the air flow.
I checked the beer last night and the pressure gauge was maxed out, even though the regulator was barely on, and I can't turn it down any more without completely shutting it off. Any ideas on what the problem could be?
