Cut out old pvc drain line for toilet in upstairs hall bath room . Had to cut out a little more Sheetrock to access all of the drain to make repair . Reconnected all drain and vent lines. Set toilet back and sealed bottom. Flushed multiple times to check for leaks and found none. Sheet rock was wet and falling down while performing work. Need to get restoration out to see how bad Sheetrock is damaged from the leak and how far is goes. There was patch work done in area I was removing Sheetrock .