| 摘要 |
PROBLEM TO BE SOLVED: To provide a piping structure of a bathtub which enables propper stoppage of a pump of a cleaning device in a reheating operation of hot-water supply equipment and which is low cost and seldom goes malfunctions. SOLUTION: A body 2 of a circulation port, having an intake port 2a and a discharge port 2b, is fitted to a bathtub 1, and the cleaning device 4, having a circulation channel 5 of which one end side is connected to the intake port 2a of the main body 2 and the other end side to the discharge port 2b, is provided. In this constitution, circulation piping 12 and 13 of the hot-water supply equipment 11 is connected to the circulation channel 15 of the cleaning device 4, while a water temperature detecting means 14 is provided between the downstream side of the portions of connection of the circulation pipings 12 and 13 in the circulation channel 5 of the cleaning device 4 and the discharge port 2b.
|
