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Are you saying that the entrance door to your house is above the upstairs bathroom? Impossible, the existing floors are all normal houses, and his bathroom should be your bathroom, if it is really the entrance door, it is recommended that you put the exposed sewer part of the soundproof cotton and then the gypsum board is flattened.
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Generally, the carpenter is covered by a suspended ceiling to facilitate future maintenance.
The entrance door is directly facing the bathroom, and it is best to add a screen to cover it, or hang a curtain on the bathroom door.
Can be replaced. You can ask a professional master to help you change the plumbing pipe network made of polyethylene. >>>More
Unfavorable, it is recommended to block.
There is a bathroom sewer pipe on the top of the entrance door, who designed it, so alternative, feng shui is a little bad, and it is not sightly, the remedy is the ceiling, there is no other way.
The sewer pipe is better to use a round one - its cross-sectional space is suitable for the largest outflow of things. The flat pipe virtually reduces the size of the object passing through.