| 摘要 |
A uniquely designed drain cover for swimming pools, spas, whirlpools and the like that is non-flat and clover shaped containing three or more “leaves” that provides for strengthened rigidity, increased protection against hair and body entrapment and that is connected to the sump through ribs that run across the body of the drain cover that allow for securing the drain cover to the sump through these ribs in addition to the perimeter providing for greater anti-deflection properties and anti-vortexing properties. Apertures found on the surface of the cover and along the perimeter add to the anti-deflection and anti-vortexing properties of the cover.
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