Importance

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Abstract

A water saver unit for use with a flush toilet having a tank, a flush handle, a tank drain opening and a flapper valve support, with a flapper valve having a flapper element for mounting on the flapper valve support, and a strap for connecting the flapper element to the flapper handle, with the flapper element having a solid disk with upper and lower surfaces, a center section and a rim, with radially extending ribs on the upper surface between the center section and rim, and with the bottom surface tapering downward from the rim toward the center section. A float is positioned on the strap to provide bouyancy to the flapper valve as long as the float is below the water level in the toilet tank. The flapper element solid disk is of substantially uniform thickness between the center section and rim, and the bottom surface taper is in the order of 5 to 20 degrees, preferably about 10 degrees. The center section includes a cylindrical portion with the ribs abutting the cylindrical portion, and with a generally flat section at the center of the lower surface, and with the flapper element molded in a single piece.

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First Claim