Searched forum with limited results. In my case the pump became clogged with needles from a cedar of Lebanon tree that passed through the filter baskets and clogged the impeller. The water was so hot the basket deformed and now the pump will not prime. I cleaned the impeller and replaced the motor seal. I cleaned the o-rings and ensured they are in place. Still it will not prime. What have I missed (other than replacing the pump)? Pump is a Star-Rite Max E.