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What was the solution? I have about 9 psi in my filter housing and it's not enough to run my pool cleaner. Charles

Serious, there is no help out there to find my problem?

To keep it short, I replaced my two speed Pentair pump motor a few months back with a new one as well as a new impeller and seals. Everything worked great once again, then after a few months I noticed the head pressure in high speed stopped moving my cleaner on the pool floor and looking at the filter gauge it was only like 5 psi when it is normally around 10-12. I thought perhaps the filters were dirty so I cleaned and replaced them, they really weren't. I have no strainer breakage and nothing in the impeller to stop pressure build up, the second deck strainer has no debris as well. As a final thought I looked at the circuit breaker for perhaps only 110 volts going to the motor, but didn't find anything tripped. I thought perhaps the new motor had gone defective and changed the motor back to the first one and still the same results. The pool stays covered with a solar cover so debris is not really an issue as the cover protects against that. Just needing some ideas on what I'm missing to troubleshoot this issue. Thanks, Charles