Illustration of how to make toilet and shower pipes with anoxic plumbing

You are talking about changing lanes in the bathroom pipes, this suggestion is that you had better hire professionals to do it, they have experience in this area, there should be no problem, if you do it yourself or ask a less professional person, do not do it well, leakage will be troublesome, rework, time-consuming, cost-effective is not cost-effective. The main thing is the interface, which must be well connected, otherwise, there will be water seepage.

1. Make a guarantee with soundproof cotton: measure the size of the sewer pipe and cut the soundproof cotton into sections. Wrap a section of soundproof cotton onto the main sewer pipe (i.e., the thick sewer pipe vertically). >>>More

Give me a real photo, see what the condition of the pipe is, explain your requirements, and then help you.

The exhaust duct of on-site masonry is made of bricks or stones, which is built on site in accordance with the relevant national building codes, and the brick joint mortar must be full to avoid smoke leakage; The inside of the exhaust duct is smoothed with cement mortar as much as possible to reduce the loss of friction resistance of the airflow. The inner surface should be smooth, the outer surface should be flat without cavities and gaps, and the end face should be flat and free of burrs.

The bathroom ventilation pipe is very small, and it can be directly punched in the exterior wall to connect it.