Hi,
I have an inground pool (an old pool), with a Hayward pump and filter system. The system runs well, after starting, but is hard to start after being off overnight. At such time I have to prime the pump by filling the prepump basket with water, which I've never had to do in previous years. If I turn the pump off after it's running, it starts well. I have over ten years of experience running the pool, so am familar with it basic operation.
Thanks,
..... john