The bathroom sewer pipe has been built, can it still be soundproofed?

Yes, build the legs of the two washbasins with red bricks, and then buy angle steel to erect them on the legs, and then lay red bricks on them. Then the surface of the red brick is pasted with tiles. The average bricklayer would. >>>More

Only some gluing can be applied to the surface of the tile - it is not durable and needs to be repainted depending on the situation.

This is a professional problem, and you need to find a professional person to solve it for you.

Summary. Bathroom sewer pipe bricking is best built to the top. If it is not built to the top, it must also be built to the place where the ceiling is suspended. Before laying bricks for the sewer pipe, it is best to wrap the sewer pipe with soundproof cotton, which can reduce some of the noise when flushing upstairs. >>>More

If there is space to install, there should be a slope to connect the pipe to the sewer to ensure that no water is stored; There should be a water seal to prevent gas overflow; It is necessary to dispose of the space that cannot be cleaned to prevent the accumulation of dirt.