During the course of the day (about 10 hours of pumping at 2200rpm), I ended up losing an inch maybe 2 of water in the pump basket.
Right before I turned the pump off for the night, I ramped up the RPMs and made sure the basket was full. Over night I think I lost about the same amount (I looked quickly, so not completely sure, but it definitely wasn't at the top).
No problem pulling prime or anything, the pump is now only a couple of feet higher than the water. But what should my expectations be? Should I have a full basket 24x7? Or is some regular loss to be expected? Or does this sound like I may have a little air leak somewhere on the suction side?