| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a bathtub water utilization device capable of washing the inside of a pipeline for transferring bathtub water form a bathtub to a tank and keeping the inside clean.SOLUTION: A bathtub water utilization device 10 pumps up hot water in a bathtub 2 to a tank 12 by a pump 11 through a recycled water supply pipe 21 connecting the bathtub 2 with the tank 12, and reuses the hot water stored in the tank 12 as wash water for a toilet. When washing the recycled water supply pipe 21, the device waits until a stopper of the bathtub 2 is pulled out and a bathtub water level is lowered rapidly, opens a solenoid valve 80A with a backflow prevention function and a clean water delivery pipe opening/closing solenoid valve 93 during rapid lowering of the bathtub water level, and washes a pipeline by making clean water from a clean water supply pipe 23 flow back to the recycled water supply pipe 21. Water after the washing of the pipeline is discharged from an exhaust port of the bathtub 2 with stopper pulled out to the outside of the bathtub.</p> |
