sorry to thread-jack, but what do you recommend for cleaning and lubing the sealing surfaces of the basket lid and o-ring?Bama Rambler said:If your filter pressure is rising that fast it means it's catching something and clogging the filter. Can you post a full set of test results and how you got them? I'm thinking there's something going on in there.
Have you removed the pump basket lid and cleaned and lubed the sealing surfaces & o-ring good? That's a common place for air leaks into the suction of the pump.