co2 regulator

I decided to get my CO2 system back up and running after moving a while back and come to find the solenoid completely snapped off the regulator. When I open the valve, you can hear and feel CO2 hissing out of it, so much so that none of it gets to the bubble counter. I've tried to fill where it...

Anyone tried this already? Genesis Union Co2 Regulator, Dual Gauged, with solenoid, bubble counter. CGA320 adaptor for US Standard CO2 cylinder.