We are in the middle of resurfacing our gunite pool and we are having ground water issues. Water was coming up from the bottom so we are adding a valve for that. The problem we are running into is that water was leaking in from around the light on the wall. So our contractor cut a hole in the wall to drain. Many days later water is still coming in. He wants to a sit for it to dry but after talking to a friend who is a civil engineer for our city he thinks it will always be an issue as our water table is really high.
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Also the houses across the street all typically have sump pumps under their homes do to ground water.