| 摘要 |
A water stopper for a toilet tank to allow fine-tune adjustment of water flushing amount of the toilet tank includes at least a cap, a dome and an adjustment strut that are incorporated with a stopping gasket and a washer. The dome is a hollow semi-sphere coupled on the bottom of the cap and turnable, and has a water inlet at the bottom thereof and an air vent at one side. It further has features as follow: the cap has a coupling portion on the bottom to fasten to one end of the adjustment strut. The adjustment strut has a stopping disc at other end. The stopping disc has an aperture corresponding to the water inlet of the dome. By turning the dome, the water inlet and the aperture of the stopping disc can be overlapped at a desired ratio, thereby water entering speed into the dome can be fine tuned to control water flushing amount of the toilet tank.
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