| 摘要 |
A pool having a gutter around its perimeter, the gutter being formed in part by an inner lip. Openings spaced around the perimeter of the pool are formed in the inner lip, and means are provided to close the openings when the water level in the gutter reaches a predetermined level. Optionally, a conduit is located below the gutter and is connected to the suction side of a pump. Selectively closable holes in a wall common to the gutter and conduit form a communication between the conduit and gutter.
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