Phantom leak HELP

Sep 29, 2014
86
Bluffton/IN
Ok guys, here is what I know:

- Bucket Test proved leak-1" per day loss
- Dye test everywhere shows good-including a skimmer leak I fixed last year with 2 part epoxy
- No bubble's on return line or at pump
- Dug up all return lines to confirm-nothing

I am letting the water drop naturally now. Pump on and off doesnt show a noticeable difference in loss

Thoughts?
 
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