one water line in to the pump,
one out to the unloader inlet
one line out from the unloader to the heat exchanger
one line bypassed back to my solution tank (premixed tank)
pressure guage should be on the outlet side of the unloader or some have a specific port for it
I'd like to eliminate the 2 pressure regulators from my Powermatic, and go to just an unloader valve.....like the Mastermatic used. It just seems like it would simplify the PM, and have infinite control over the pressure.