Abstract: The disclosure relates to a face plate for use in conjunction with the skimmer apparatus for recreational devices, such as swimming pools and spas, wherein the face plate for the fitting positioned in the swimming pool wall and extending into the swimming pool includes a plurality of ribs on each leg thereof to prevent closure of the aperture from the pool to the skimmer apparatus.

Abstract: A swimming pool of circular or oval shape constructed of interleaved extruded aluminum panels with water containing liner secured thereto wherein hoop stresses in the pool walls from the water pressure are withstood along the panels and the joints therebetween. The pool walls are constructed from a plurality of interleaved extruded aluminum panels which are constructed so that when a pair of adjacent panels are positioned relative to each other in a first predetermined position, the male and female joint portions can be slid, one within the other with sufficient extra space or play to allow easy insertion and assembly. However, when the two adjacent panels are then rotated to a different angle relative to each other, the play or additional space is taken up and the adjacent panels become locked together in an essentially unitary construction.