Posted 5/15/2019 22:16 (#7499245 - in reply to #7499213) Subject: RE: Restriction in John Blue pump
Wallis, TX
After checking for collapsed hose, air leak, clogged filter etc I’d look at the valves. Likely one is bent or spring damaged, not that uncommon to happen. Just look and see that there is a difference between an intake and an output valve, output has stronger spring.