In Reply to: (1) it is a clusterf**k and accident waiting to happen... (2)..... posted by ChrisM on February 25, 2006 at 17:22:26:

I believe it's more important to keep this in mind when your tank gauges into the 200 PSI range. Your regulator is only able to pass you air because of the pressure hitting the first stage spring to levy the downstream cracking pressure set against it. Without air pressure up to a set reactive pressure to actuate past the spring and seat, no air will pass to the second. Now ask yourself this question; what's the IP set at on that regulator? 140 to 165 PSI? Now think about how much air your gauge says is sitting the HP seat? 200? 210? 190?