My PB just installed pebble sheen (remodel) and I am almost done refilling the pool. My pool is a gunite structure built above ground, so all the walls are exposed. This is a 25 year old pool. I notice the base of the structure is a little damp to the touch. However, in the wall below the pool light, water actually seeps through like sweating. I don't know how water tight a gunite structure should be... Is it normal?