Air in pump...

[Sully]

Your sucking air and quite a bit if only half the basket is filling up. Possible O-ring on pump lid and/or the pump lid, they do warp over time. Impeller could be partially clogged. But, start at the pump lid. MAke sure the o ring is sit correctly and in good condition.

[newbie2pools]

Thanks so much! I'm going to run to the pool store and get an o-ring and see how that goes. Since the pump was new when we moved in, I'm guessing that it's probably that. I'll be back if not