| 摘要 |
PROBLEM TO BE SOLVED: To provide a bathtub water cleaning method capable of cleaning bathtub water by efficiently removing dirt substances with little waste water. SOLUTION: The bathtub water is cleaned by floating the dirt substances D such as hair, boiling scale and sebum in the bathtub water to a bathtub water surface layer Wa by using air bubbles jetted from a bubble jetting port 2a, generating a rotating flow inside a bathtub by a jet flow jetted from a water flow jetting port 2b, gathering the floating dirt substances D, and discharging the gathered dirt substances D from a discharge port 4 to the outside. COPYRIGHT: (C)2008,JPO&INPIT
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