Working on air brake systems over here in Afghanistan for the military I have come up with an idea I am going to try once I get back home. Trucks that use air brake systems have an "air drier" on the vehicle. Air gets routed thru the drier and a desicant material then to the storage tank. when the pressure gets to a set point, typically 125 psi, it "pops off" the supply pressure thru the air drier, removing the moisture that was collected. That is the big air blast that you might hear when a truck is running.
My idea is to mount this at my compressor and us it as the drier for my air system. Any thoughts? Aaron