I drained our pool to change out the water and also install a salt water system. When the pool was drained we discovered 4 different cracks in the surface and a hollow spot. All but one of the cracks looked dry, but one has remained wet for over 12 hours (pictures attached).
Is this likely from water still seeping out of the crack that leaked in when the pool was full? I haven't noticed major water loss when the pool was full. Just the occasional top off that I attributed to evaporation from our very hot summer. How repairable are these types of cracks and what can I expect to pay?