Hi TPS members. I have a Hybrid Pool (fibreglass vertical sides from the ledge to the coping and gunite bottom and sloping sides). I have a small tear in the fibreglass that I intend to get repaired. I would like to drain the pool just below the ledge. Should I have a concern about the fibreglass sides popping out due to ground water? I wouldn't expect so because they are only around the top 4 feet of the pool. Any advice would be appreciated...thanks