We noticed a leak a couple months ago. We called out American Leak Detection and they can not seem to pinpoint the leak. They guessed where it was in the spa and gave us a nice hefty estimate to repair. They gave us some suggestions of things we needed to do so they could try to get a more accurate read. We have been batteling with the pool builder, fixing the small issues and trying to figure out where the leak is on our own. Our spa is currently drained so it could be worked on. Anyway, my husband just noticed we have several cracks in the pebble tec. Is this normal, the pool is less than 5 years old? Could this be the source of our leak? Thanks so much!