Got a regulator now what?
Got a good deal on a victor dual stage regulator on ebay and just got it (model VTS 450D, and getting the CGA-320 stem). What do I need now to finish it off? I know it should go regulator -> solenoid -> needle valve -> bubble counter but where do the check valves go and how many? What brands? Do I need a reducer or anything else? This is going on a new tank I set up and it's been maybe 10 years since I had a planted tank, so much has changed! Never messed with pressurized CO2 but I'm excited about it.