| 摘要 |
A water - buoyant, water-saving device, attachable to undersurface of a toilet Flush-Tank Float so as to add to buoyant force of Float that causes closure of Flush-Tank water inlet-valve. Since buoyant closure force obtains when tank water has risen enough to contact and lift Tank-Float, the buoyant body of this device, placed below the Tank-Float, provides additional buoyant force at a lower water level. Often the buoyant force of Tank-Float is not adequate to close water inlet-valve before water rises so high it wastes into tank overflow pipe. This device contributes the additional buoyant force that can eliminate this problem. Lines equidistant from all sides are marked on buoyant body as guides for symmetrical cut-off to facilitate within-tank fit and/or to reduce buoyant effect. By such selective buoyancy negation the water level in Flush-Tank is adjustable to prevent wasteful overflow and to set water level for lowest water volume for effective flushing.
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