I'm just putting together my kegging system for the first time, and I'm having a problem with my newly purchased Foxx Dual Gauge Regulator (purchased brand new from LHBS). The "hi" output gauge is properly measuring the amount of gas in the tank, but the regulator's "lo" outputs (which go to the output, and the output psi meter) are not working. In other words, the regulator is registering the gas in my tank, but isn't letting it out. There were no instructions with the regulator, so is there some easy preliminary thing that I have to do that I simply haven't, or is it just a faulty regulator?
Here's a link to the product: http://www.homebrewtalk.com/f142/foxx-co2-primary-regulator-double-gauge-234785/
PS. Yes, I've opened the valve at output hose, so I know it isn't that.