first post so bear with me. 1.5 hp sta-rite pump with 2" suction and 1.5" output. I have a 1.5" "T" at the output with a hose bib for priming and a 1.5" ball valve. I have not hooked up any of the irrigation as of yet. At the hose bib I screwed on a "Y" and attached a pressure guage to one side and a garden hose to the other. My question is what type of PSI should I have if I were to shut off the 1.5" ball valve and runthe pump thru the garden hose?