I finally bought a pentair intelliflo vs pump. Installed it on monday. Set the thing at 750 rpm and let it go. Got up in the morning, found the pump basket empty, maybe 2 inches of water at bottom, and pump barely pumping. Reprimed,by setting it to high speed, went to work, came home, same thing. Wanted to make sure it wasn't something I did. Today, I cleaned filter, repiped the entire thing and put extra teflon tape on MPAs. Still same problem, filter basket slowly drops down over time.

My old pump was a whisperflo. When it ran, I always had air bubbles in the return lines in little spurts. I could never find the air leak, and just left it alone because it wasn't causing a problem. Now it is. Only thing I haven't checked yet is the valve that switches to the jucuzzi. I am afraid to take it apart and make things worse. Help please.I looked up jandy valve, but mine is much older than the ones pictured. It is under the concrete and accessed through a little man hole cover thingy.