[Snailed]

The height of the components matters and is a key element of collecting condensation in all compressed air systems on-road or not.

I have my tank as the lowest point in the system with the pumps slightly higher and a water trap between the tank and valves with it's lowest point at the top of the tank. The valves are the highest point in the system and inside the cab. I have yet to get any moisture out of the water trap in about 200 pump cycles and no freezing.