So if pump dosen't prime, its only the suction side coming from pool thru pump right?
And if theres a dscharge leak after pump to filter etc then it would never affect priming right? just leak when system is off right?
(Could the copper to pvc union be old and leaking air? i do not see water leaking and tryed the plastic bag over it.)
psi reads 21-22 just washed it. kinda weak flow at returns in pool.
12k no main drain fiberglass