Well I decided it was time to fill my pool up for the summer (live in Phoenix, AZ and its already upper 90's and low triple digits), and I noticed that my pool was leaking. There was tons of water on my tarp surrounding my pool. I have an above Intex ground 16'x4' pool, steel frame. I lost 1 inch of water in nine hours over night (temps at night are high 60's currently). I got in the pool and skimmed the bottom very slowly with a mask for about an hour trying to locate any air bubbles, which would hopefully show a possible hole in the liner. I found nothing! I drained the pool to about 3 inches remaining and I shop vac'd the water around the outside of my pool (on the tarp) and noticed there was no more leaking. After letting the sun dry the rest of the water on the tarp, I filled the pool to about 8 inches deep and noticed no leaking. So I filled it up just short of 1/2 way and I noticed the pool began leaking again. I checked the outside layer of the pool and found no indication of water on the sides. I am at a loss as to why it is leaking. I called my local Pool Company and they said a Dye Test might work, but said the water would leak regardless of 3 inches or 48 inches in the pool if the bottom had holes. So I am holding off on a dye test.
No seams are damaged
No water or wetness on the pools outside walls
No air bubbles
No leaks around the pump hookup areas (inside and out)
Can't see any hole(s) on the bottom that would allow 1 inch/9 hours of water loss
Any ideas? thanks