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It's called a floor drain! <>
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Buy a floor drain, a pack of plugging kings, and you can install it!
It may be a rat woman, also called a tide bug, who prefers dark and damp places.
The quality of the floor drain is not good, change, go to the building materials supermarket to buy a good one, a good one is only seventy or eighty yuan. My family went to the supermarket to buy it at the time, and I remember it was about 70 yuan a piece. At that time, my husband also said that if it was so expensive, the building materials market was only one or twenty yuan.
If you have to pour a certain amount of water into that place every day, a water seal will be produced, and the peculiar smell will not come out.
Look at where your washing machine is placed, if it is placed by the wash basin, you can consider connecting a tee from the drain pipe of the wash basin, and then make a drain, if not, you can directly insert the drain pipe of the washing machine into the floor drain. >>>More
Will your downstairs agree? The bathroom sewer pipe is a complete set, you change the location, you have to change the layout of the pipe at the ceiling downstairs, and then at the floor, and then smash a hole to make a new sewer. >>>More