11 Aug 2010 10:56 AM
|How much water are you actually losing? A little? a lot?
Is it fiberglass/concrete/lined? All have their own anomalies.
You'll be surprised how much water you can lose on a single warm day without a pool cover, especially over summer.
Stupid question, but I suppose you've looked for leaks VERY carefully around the entire pump/filter assembly while the pump is actually running?