| 摘要 |
PURPOSE:To surly and easily sterilize a purification filter of water in a bathtub by providing a sensor for detecting the water level in the bathtub and discharging hot water from a heat source device at a time for detecting that water in the bathtub has been drawn and performing disinfection of the said filter due to hot water. CONSTITUTION:The valve means 13, 14 are provided to the midway part of a circulation pipeline by which a bathtub 1 is connected with a circulation pump 2. Moreover a pipeline is connected to the midway part of the circulation pipeline, and high-temp. water is supplied through this pipeline from a heat source device 31 having a hot water supplying function. Further, a means 7 for detecting water quality in the bathtub 1 is provided. When the water level in the bathtub 1 is made lower than the preset water level from a state wherein the said water level is higher than the preset water level, the valve means 13, 14 are changed over. The high-temp. water supplied to the circulation pipeline is passed through a purification filter of water in the bathtub. Furthermore, the temp. of hot water discharged from the heat source device 31 is regulated to >=60 deg.C according to changeover of the valve means 13, 14. As a result, the need for performing manual sterilization is eliminated. The inside of the purification filter of water in the bathtub can be sterilized surely, rapidly and easily. |
