Installed the pool Aug. 2010, and it has literally been trouble free. I installed "The Circulator" in the return near the steps in an attempt to keep all the little debris from accumulating in that dead spot. It worked as advertised, but now I have developed an obvious leak. Overnight the pool will lose over an inch of water. I see no bubbles in the pump glass, or wet spots around the equipment or pavers. I closed the ball valve to the supply side, stuck carrots in the return eyeballs (3), and filled the pool to it's normal level. There was no water loss overnight. I'm thinking the leak is obviously in the return side, but I don't know how to determine where it is since the 3 returns are all supplied by the same 2" pipe. I have a leak detection outfit coming out this Friday to take a look. I'm thinking the Circulator is the culprit, since I've had no issues until a week after it was installed. Any ideas/comments? Thanks