| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive system to be attached to a bathtub without remodeling the existing bathtub for efficiently removing floating dust, underwater dust, and slime and sand on the bottom and filtering water in the bathtub to be returned to the bathtub. SOLUTION: The dust, slime and sand in the bathtub are removed and filtered out through a floating dust intake with a float and by an underwater rotating/ vibrating brush cleaner. COPYRIGHT: (C)2003,JPO
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