Here's my history:
Bought this house (pool newbie) in west-central Florida in mid-November 2012. 15' x 30' pool is under a lanai and marcite(?) coated. Not certain of pool age when speaking with previous owner. Perhaps > 20 years. Pool wall has had a crack repair. January/February has been warmer than normal. I've been tracking the water loss and it seems to be a little greater that 1" inch per week. My imagination tells me it is gradually increasing. Some pool people tell me it is normal; others say I have a leak but wait it out until Florida rainy season. February 14th it rained all day---most rain in some time. This morning the 15th of Feb., I see there are earth worms near the drain(?) in the deep end. Is this where I have a leak somewhere deep under the pool bottom? I've done the "home-made" leak test by dribbling food coloring near the jet ports and repaired crack but no results. Haven't checked the drain though. Any input/ideas would be greatly appreciated before I start throwing money at this problem. Would certainly hate to have water leaking under the foundation of my house.