Bathtub washer

Although it is managed even if it does not wash a bathtub purposely if it washes away with the warm water from a shower after draining, there are also many people who think that serious work washes a bathtub.
Surely, if a bathtub is washed by scrub brush, the waist must be bent and it must bow.
The remaining hot water of a bath is inhaled with a pump, and injection and a bathtub are washed as a jet shower. Since it is not necessary to newly use water for bathtub washing, it becomes saving of water.
If it drains from a bathtub, since a water level will fall gradually, the whole surface of a bathtub is automatically washable.