Abstract: A swimming pool has a plurality of wall panels secured together in an edge-to-edge relation to define the perimeter of the pool. At least one of the panels includes: a generally rectangular main body having a generally planar face forming a portion of a pool side wall; a pair of opposed edge flanges for juxtaposition with edge flanges of adjacent wall panels, the flanges extending from the plane of the body face at an angle differing from orthogonal by a small draft angle; and a plurality of elongated ribs extending along each flange of the at least one panel in a direction generally orthogonal to the plane of the body face.

Abstract: A swimming pool assembly having a plurality of side wall panels certain adjacent ones of which have juxtaposed apertured edge flanges joined together by compression plates each having planar blade and a first plurality of pre-alignment fasteners extending away from the plane of the blade through aligned apertures in each juxtaposed flange and engaging a flange plate surface opposite the blade to temporarily align the side wall panels. Each compression plate further includes a second plurality of alignment towers passing through additional aligned apertures in each juxtaposed flange terminating in wedge receiving slots. Wedges, upon being forced into respective slots, clamp the flanges tightly together. Adjacent panel flanges may further include FML flat surfaces oriented to compensate for panel flange draft angle whereby adjacent panels when clamped together present generally coplanar pool surfaces.