Posted this in another forum but this seems to be the right place for it. 20x40 in-ground pool. I'm losing 1" a day. Bucket test tells me the leak is outside the pool as it only seems to lose water when the pump is running. It's not the discharge line. No wet spots I can see anywhere. I'm adding salt and CYA pretty regularly so this is getting pricey in addition to the bi-daily water add. Is it time to hire a leak detection company? Thought about buying a pressure test but all that tells me is if it's on the suction or return side - still gotta dig up the yard. Any other ideas? Leak company said they can come at end of month, minimum $500 charge.