It would seem my regulator sh*t the bed yesterday, or probably earlier. So i put two kegs on to carb up, knowing I was low on gas. Next free day off, maybe 3 days, go down to retrieve bottle to exchange, and it was empty. Disconnect the regulator, exchange gas... new bottle in hand reconnect regulator, turn gas on. Now, it has pretty much be set and forget for a year. minimal adjustment to the pressure, when i turn the gas on the line pressure side, which should be set to about 10#, starts to spin and the pressure relief starts popping like a rifle going off. Bottle gauge reads the correct pressure. So now if have two kegs, one of which i think needs to be resealed waiting in the kegerator until the new regulator shows on Monday. But it would follow that the initial bottle put a blanket of C02 on the beer. Not that there is much I can do about it now anyway.