Abstract: A drainage apparatus providing for a self-draining pool cover on a typical pool (13). The pool skimmer unit (18) is unfastened and removed from the pool wall (8). The pool water (14) at the height to the bottom of the skimmer opening (15) in the pool wall (8) allowing for the drainage of water, leaves, residue, and debris off of the pool cover (3) by gravity through an aperture (11) in the pool cover (3) sandwiched between the assembled drainage apparatus (5) having an aperture (11) aligned to the perimeter of the skimmer opening (15) with a skimmer gasket (6) on the inside pool wall (8) secured to the perimeter of the skimmer opening (15) in the pool wall (8) by use of a skimmer gasket (6) and a skimmer apparatus (9) aligned on the out-side pool wall (8) to the perimeter of the skimmer opening (15) secured together to the perimeter of the skimmer opening (15) in the pool wall (8) by the use of male fasteners (10) inserted through the fasteners passageways (17) secured to female fasteners (16).