PURPOSE:To clean a bath tub without labor and simplify the structure and supply it with low cost. CONSTITUTION:Water ways 2 conducting water are formed all along the whole face of the hollow inside of the cover body 1. A water feed outlet 3 supplying water to the water ways 2 is formed at the peripheral edge of the cover body. And ejecting nozzles 5 are equipped to connect to the water ways 2 at the lower face of the cover body 1. The bath tub cover A constituted in this way is laid down on the upper opening of the bath tub and water is fed from the water feed outlet 3. And water is ejected from the ejecting nozzle holes 5 to clean the inside face of the bath tub.
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