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Anonymous users2024-01-24That's the overflow pipe, and if there is too much water in the tank, it will go from the overflow pipe to the toilet.
Adjust the float of the water supply valve downward, and if it doesn't work, you can only replace the water supply valve.
It must be tap water, and there is a float valve switch in it, which automatically closes the water inlet valve when it is full. Can be opened.
It can save water but it is not an empty bottle, if you feel that the amount of water is a little too much when flushing, you can adjust the water level.
There is a faucet on the toilet tank in Japan, and its main function is mainly to save water, and the water for washing hands is flowing into the tank to flush the toilet.
The water-stopping float is generally a set to buy, and it is not too expensive. Ordinary plumbing shops will have it, but you have to run more and ask more because the amount is less.