Originally Posted by ROBERT CROSS
POI.....my 25gal dual stage shop compressor, set at 120psi supplies a steady 35psi with the delivery valve wide open on the gauge....the amount is just as important as the pressure.
apply air on a closed system....at least one outlet open at all times.
I agree on the volume concept, however I used my traveling air compressor to simulate how things would be winterizing on the road. I figured as long as my PSI was lower than what the system experiences when pressurized with water, I should be ok.