| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a jet bath system eliminating "air accumulation" inside air piping to be the cause of generating sound when starting an "blow operation without air". Ž<P>SOLUTION: The jet bath system includes a bathtub, a pump, a watering piping part, a nozzle, a blow piping part, an stop valve capable of switching air supply and air non-supply to the blow piping part or the nozzle, a first air piping part connected to the upstream side of the stop valve for leading air in the atmosphere to the stop valve, a second air piping part where the downstream side of the stop valve and the blow piping part or the nozzle are connected by a connection part, for leading the air in the atmosphere through the stop valve to the blow piping part or the nozzle, and a control part for controlling the pump. When starting "the blow operation without the air" for driving the pump while the stop valve is closed, the control part causes the pump to be driven at a rotational speed higher than a rotational speed during a rated operation before driving the pump by the rated operation. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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