Patent ID: 8936721
Filing Date: 2015-01-20
Classification: B01D,B29C,C02F

Abstract:
1. An underdrain for a pool filter comprising: a first component; and a second component selectively interlocking with the first component to form an interior area of the underdrain, each of the first and second components having a plurality of drainage openings, each of the drainage openings opening into the interior area of the underdrain and permitting fluid communication between an exterior of the underdrain and the interior area, wherein the first component includes a first bracing member extending from an inner surface of the first component into an interior area of the underdrain so that a tip of the first bracing member extends into the second component, and the second component includes a second bracing member extending from an inner surface of the second component into the interior area of the underdrain, the tip of the first bracing member having a recess for receiving a tip of the second bracing member so that the second bracing member engages the first bracing member to form a support column extending between the inner surface of the first component and the inner surface of the second component.