pressure testing pool supply line question
I have read other posts here but have a specific question.
We have just installed a new auto-fill supply line. The contractor capped it at the hose bib and then ran another hose to his meter and set the pressure at 40 psi. Within 6 hours, pressure had dropped to 36 psi and by 18 hours it had dropped to 28 psi. At one point when hooking up the equipment, the pressure shot up to 60 psi until he adjusted it down.
Are these signs a reading of a bad PVC joint?