I have a 20X40 in ground pool with a concrete base & fiberglass walls. The pool has been in the ground since the early to mid 80's. I've been losing about 2" of water a day for the past week. I've plugged the skimmers & not run the pump for a day & I am still losing the same amount of water. I do not notice an "wet" areas around the pool. It does have a concrete patio that is anywhere from 10' to 3' surrounding the pool so I am not sure if I would see any wet areas. What would the steps to start searching for the source of the leak?
Thanks in advance.
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