hi all, i got some problems with my Co2 regulator its a Northernbrewer CO2PO regulator, but its no longer working properly, yesterday i kegged and tried to force carb, so i set the regulator to 20PSI, but some how the neddle never stop, it goes up and up and spinning like crazy even when the thank was shut down and i was purging the valve but the neddle sitll continues to go from zero to the upper limit if i tried to attach the keg the relief valve open so i decied to take it out from the Co2 tank, but im not so sure if this can be fixed or just buy a new better quality regulator