| 摘要 |
A modified flapper valve for use in a toilet tank having a flexible extension structure attached at a first end to the valve and including a second end having at least one primary attachment point and a plurality of secondary attachment points, and a float element removably attachable to the extension structure and including a plurality of grooves for receiving the primary attachment point and the secondary attachment points of the extension structure, wherein the number of secondary attachment points of the extension structure engaging the grooves of the float element determines the distance of the float element from the valve. The extension structure can include a weight, either removable from or integral with, the extension structure. The valve can be mounted within the tank by conventional arms or by closing-moment exerting arms.
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