Does anyone know of a pool builder in the Uniontown, PA or Pittsburgh, PA area that uses the Uniwall process? The walls are made from a fiberglass roll, and the bottom is concrete with epoxy finish. Pockets filled with concrete around outer side of walls, which tie into a concrete "collar" around bottom of pool. Uniwall is made by Family Fun Pools. I'm interested in having a semi-inground 16 x 28 free form pool installed on a sloped yard.