| 摘要 |
PROBLEM TO BE SOLVED: To optimize supply operation of wash water to a toilet bowl.SOLUTION: A wash water tank device according to an embodiment comprises a first water supply part and a second water supply part. The first water supply part supplies wash water from a water supply source into a tank as water for storing in the tank. The second water supply part supplies a part of the wash water, which is supplied from the water supply source to the first water supply part, to an upper end side opening part of an overflow pipe. The wash water tank device according to the embodiment, while supplying the wash water from the first water supply part to the tank, supplies the wash water to a bowl part by supplying the wash water from the second water supply part to the upper end side opening part of the overflow pipe. When the water level in the tank exceeds the high water level, the wash water tank device supplies the wash water in the tank to the bowl part by overflowing to the upper end side opening part of the overflow pipe.SELECTED DRAWING: Figure 9 |
