| 摘要 |
PROBLEM TO BE SOLVED: To provide a water supply unit and a water supply device for planning the saving of a service water by utilizing a reclaimed water such as a bathtub water for a flush toilet. SOLUTION: A water supply unit and a water supply device which are together provided on a cleaning water tank 2 of an existing flush toilet, and utilize the reclaimed water Wr of a bathtub water as a cleaning water. Namely, a selector valve 46 for selectively changing over water supply to the cleaning water tank 2 as either the reclaimed water Wr or clean water Wn fed from a clean water source, and a control means (a water supply controller, a controller body, and a remote control device) which detects the drainage mode from the cleaning water tank 2 and selectively changes over the reclaimed water Wr or clean water Wn to supply water to the cleaning water tank 2 is provided to realize the saving of the clean water Wn such as a city water.
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