Loosing a 1/4 inch or more A day in vinyl in ground pool. We thought our skimmer was leaking so we tore off the deck and found that dirt has settled about 1foot around pool. We dug down a few feet around concrete pad because we thought maybe the leak was in the skimmer pumbing and no moisture. Today I looked under pad and saw where it was wet behind the skimmer wall like the leak is coming from the face plate now where do I start?