Short Wall Construction:
Most of the abuse occurs in the top part of the pool wall where expansion and contraction is the greatest. This is also where oils, dirt, and debris will cling to the walls. UNIWALL is a hard non-porous surface that is easy to maintain and excels in expansion and contraction environments. Also, keep in mind you still have continuity of concrete from the deck, to the pockets, to the footings and into the floor.