| 摘要 |
A water level control device has connected tubular housings, one serving as a support for a hose connection and the other serving to support a valve housing assembly for operation of a toggle valve within the valve housing. An airtight float serves to raise the one extreme of a float rod when buoyed by sufficient water level admitted through apertures in the valve housing. The other extreme of the float rod is attached to a rod holder to hold the float rod. The rod holder passes through an outlet apertured valve seat wherein a valve washer attached to the rod holder within the toggle valve cavity is urged against the outlet valve seat by water pressure from a water hose. When the water level in a pool or spa, and thus the float, is lowered, the one extreme of the float rod will also be lowered lowering the other extreme of the float rod and the attached rod holder to cause the attached valve washer to tilt away from the valve seat and permit water from the hose to enter the pool. A water flooded water keel attached to the float serves to hold a threaded float connector attached to the float rod for vertical adjustment, the water keel also serves to resist float rotation due to surface waves or wind playing on the float. In the preferred embodiments, the float is configured in the shape of a natural aquatic object (e.g., duck, frog, dolphin, lotus blossom, etc.), a natural or unnatural object or the like. The valve washer has free movement within the valve cavity such that siphoning from the pool to the water supply is eliminated when the freely positioned valve washer is seated against the valve inlet pressure reducer thus stopping siphoning action. The inlet pipe supplying make-up water to the pool enters the pool above or below water level. The device is provided for easy placement in a pool by suspension of the float and attached valve housing from an outrigger water supply assembly resting on a pool deck adjacent to the pool. Zinc ballast weights are positioned within the outrigger and water supply for stopping metal erosion and plaster discoloration due to electrolysis.
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