[QUOTE=housemom] - the psi went down after a lot of vac-ing and cleaning out baskets...The pump basket does not fill completely; there is air on top. I know it used to fill with only a tiny air bubble on top. It also used to really rattle my plumbing when the pump kicked in - pool guy told me my pump was too big for the pool...No such rattling now. It's like it just doesn't kick in all the way...


I would begin to wonder if the pump impeller wasn't worn/damaged/slipping.