I have June O's CO2 regulator, and I think the brass things are needle valves. The trouble is when I have more that one connection, it's all screwy. I shut the valve off at night. When I turn it on, it is high pressure, sometimes blows the silicone hoses. Then I have to adjust the pressure valve. Then the pressure goes way down after awhile, and I have to readjust. Then adjust all the needle valves. Then move the hoses. Then the CO2 pours out or doesn't come out all. Then fiddle with the needle valves again. Then there was the time all the gas escaped into the apartment. This thing is driving me crazy. It seems like I can only run one tank successfully, when I'd like to do two or three, like June. However, I would like to turn it off at night, right? Does anyone here know of a good system or can direct me to someone or someplace that does? I see that it may cost $322 at Drs. Foster and Smith for a complete package that has an Azoo regulator. I've heard the JBL regulators on Ebay are no good and Milwaukee is, and of course ADA is the most expensive money can buy. Susan _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member