| 摘要 |
PROBLEM TO BE SOLVED: To provide a bathtub residual hot water utilizing system capable of utilizing bathtub residual hot water more efficiently than a conventional system. SOLUTION: A water storage tank 40 for storing the bathtub residual hot water to be supplied to a flush toilet 20 and washing machine 30 is arranged on a toilet and washing machine hot water supplying passage 4, and a selecting means (three-way valve) 19 for switching the communicating state of a hot-water supply device-side hot water supplying passage 2, a bath hot water supplying passage 3 and the toilet and washing machine hot water supplying passage 4 is also provided thereon. When hot water (water) is supplied to the flush toilet 20 and washing machine 30, the switching of hot water supplying passages (water supplying passages) is performed by the switching means 19 to distribute and supply the bathtub residual hot water stored in the water storage tank 40 to the flush toilet 20 and washing machine 30.
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