Single (window) turn catch located at base of shower door opposite the hinge side will hold lower part of door tight against the sealing gasket eliminating "all" leaks. Several 1/8" drain holes were drilled in the aluminum door frame just above the lower gasket to duct the small amount of water that collects between door and frame back to shower stall. The catch was slightly modified to permit opening by screw driver from the outside if necessary and for correct spacing.