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Anonymous users2024-01-24For sewer pipes, two holes indicate that they can be adjusted, and they are adjusted according to the installed pit spacing, generally 300 and 400 pit spacing, and the pit spacing refers to the vertical distance from the hole to the wall.
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Anonymous users2024-01-23The general standard pit spacing is 300 cm to 400 cm, only one is open, 400 cm with the front hole and 300 cm with the back hole.
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Anonymous users2024-01-22There is a transparent plastic pipe that is the overflow pipe of the toilet water system.
1 All are generally like this, the installer looks at the distance between the center of the aperture of your toilet and the wall, and blocks one by one.
I can only tell you that this product is not up to standard and should not be branded.
Actually, only one.
Now the national standard toilet drain hole spacing is 30 or 40 hole spacing, generally 30 in the south, 40 in the north, so the manufacturer will produce two empty, need that hole spacing, just plug the other hole, at the same time, change the hole spacing on the flushing function does not have much impact. >>>More
Place the toilet against the wall, and the hole facing the drain is the drain hole, blocking the other hole.
This is a running water hole, or an air hole, to prevent air problems from clogging the toilet.