I have a 10yr old IG 14x28 pool. Jaccuzi filter and pump. When I kick on the pump manually in the AM, the pump will not prime at all. I need to open up the basket, add water and bingo, pump primes and runs without issue. I have already re-thread taped the inlet to the pump and the outlet to the filter last night and had the same issue this morning. If I turn the pump off in the evening then head out to try starting, few hrs after its been off, it will prime. Seems to be a prolong period of time, overnight it will not prime itself again.