| 摘要 |
A system for overflow protection for swimming pools and tanks that conserves water by taking excess water from the bottom of the tank including a weighted hose directed near the bottom of the tank and connected to the protector. The protector has inlet, outlet and vent passages, where the inlet is at an elevation below the surface of the pool and the nadir of the outlet passage is at the surface elevation of the pool and the vent is open. A hose connected to the outlet directs overflow away from the pool. Charging the weighted hose will cause fluid above the outlet elevation to discharge excess fluid. In an alternative embodiment a plug is inserted into the vent and charging the weighted hose will cause the pool to drain to the level of the end of the hose.
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