| 摘要 |
PROBLEM TO BE SOLVED: To provide a bath hot-water supplying system capable of surely suppressing contamination of piping and the like for the next hot water supply after having a tub. SOLUTION: This bath hot-water supplying system 1 is provided with a silver ion generating device 6 in a hot water supply pipe 4 connecting a hot water supply pipe conduit 2 for supplying hot water and a circulation pipe conduit 3 for reheating of a bathtub 5. A pipe cleaning control means 70 executes pipe cleaning after the water in the bathtub 5 is completely drained. In cleaning the piping, the silver ion generating device 6 is operated to supply silver ion to the circulation pipe conduit 3 to mix the silver ion of high concentration in the specific amount of hot water or water discharged into the bathtub 5. Thus, not only the circulation pipe conduit 3 but also a circulation fitting 51, a drain port 53 and a drain pipe 54 of the bathtub 5 are provided with sterilizing and antibacterial effects by silver ion, and they can be kept clean. COPYRIGHT: (C)2009,JPO&INPIT
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