| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bathtub washing device that can quickly and surely uniformize detergent concentration of washing water containing detergent for use in circulation washing without adding a special component or the like, in a circulation washing device. <P>SOLUTION: Before bathtub washing processing by circulation washing is performed, a circulation pump is operated to supply detergent to hot water in a water storage tank, and at the same time, the hot water is circulated between the bathtub and the water storage tank, and detergent mixing processing is performed. In this instance, the operation control quantity of the circulation pump is made to correspond to a set small flow rate smaller than a set large flow rate of the bathtub washing processing. For example, a flow rate is set to such an extent that the hot water to which detergent is supplied does not jump out from a washing nozzle into air in the bathtub, but flows out from the washing nozzle to the bottom wall surface of the bathtub. <P>COPYRIGHT: (C)2013,JPO&INPIT |
