Put in new pump (hayward tristar 2-speed) and everything is fine except I notice some air in return lines and quite a bit in filter- I can open top valve every few hours and air comes out. Water is entering and leaving the pump basket fine but I realized it is not filling up to the top. When I take the top off the basket and add water, it drops to the same lever- which I now realize is the level of the pool! The new pump basket is about 3 inches higher than the old one and so there is about 3 inches of air space left in the basket area.
So, I can drop my pump an inch (by taking it off the plastic base), and raise my pool level about another inch but this will probably not quite do it (i.e. there will still be an inch or so of air). I wanted to ask you all if this makes sense? That is, does the top of the basket have to be below pool level for the pump basket area to fill?