| 摘要 |
PROBLEM TO BE SOLVED: To provide a system for utilizing bath residual hot water capable of further efficiently utilizing the bath residual hot water than in the conventional system. SOLUTION: A hot water supply installation side hot water supply line 2 is branched into a first bath hot water supply line 3 for supplying hot water to a bath and a washing machine hot water supply line 4 for supplying hot water to a washing machine 20, a hot water supply line is changed through a three way valve (bath washing machine changing device) 5, so that bath residual hot water can be supplied to the washing machine 20. The first bath hot water supply line 3 is branched into a second bath hot water supply line 6 and a toilet water supply line 7, a water storage tank 40 is provided to the toilet water supply line 7, the hot water supply line is changed through a three- way valve (bath toilet changing device) 8, the bath residual hot water is stored in the water storage tank 40 and, at the same time, the bath residual hot water stored in the water storage tank 40 is supplied to a washing toilet 30 by a toilet water supply pump 13.
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