How to renovate the bathroom and change the sewer

It depends on whether your bathroom has a caisson or not. If there is a caisson, all the drain pipes are laid under the caisson, and the drain main is passed through the drain pipe channel of the caisson, so we only need to change the pipes in the caisson; If it is without a caisson, one way is not enough to raise the position of the drainage pipe, and the other is to place the drainage pipe under the floor slab by passing through the floor slab to change and lay, but this is to build a house or villa to carry out, if it is a commercial house can not be done, it must be raised, and the general commercial housing is a caisson.

To prepare floor drains, sewer pipes. Here's how:

1. There is a floor drain left in the place to take a bath, as the main floor drain, which is the lowest point of the whole bathroom, 2. The sewer pipe of the wash basin, the sewer pipe of the washing machine, if there is a bath room, the sewer pipe of the bath room, and the sewer of the toilet are generally not changed.

Answer: Hello, in principle, it is not possible, the house can not change the sewer pipe without permission, and the decorator shall declare and register with the property management company or housing management agency before the start of the residential interior decoration project. The decorator shall be responsible for repairing and compensating for the blockage, water leakage, water and power outages, and damage to the adjacent residences caused by residential interior decoration activities.

Referring to Article 13 of the Administrative Measures for Residential Interior Decoration, the decorator shall declare and register with the property management enterprise or housing management agency (hereinafter referred to as the property management unit) before the commencement of the residential interior decoration project. Residential users who are not the owners shall obtain the written consent of the owners when they decorate and decorate the interior of the dwelling.

Referring to Article 15 of the Administrative Measures for Residential Interior Decoration, the property management unit shall inform the decorator and the decoration enterprise entrusted by the decorator of the prohibited behaviors and precautions of the residential interior decoration project. Before decorating and decorating the dwelling, the decorator shall inform the neighbors.

Referring to Article 33 of the Administrative Measures for Residential Interior Decoration and Decoration, the decorator shall be responsible for repairing and compensating for the pipe blockage, water leakage, water and power outage, and damage to articles of adjacent residences caused by residential interior decoration activities; If it is the responsibility of the decoration enterprise, the decorator can recover from the decoration enterprise. If the decorator dismantles and alters the heating and gas pipelines and facilities without authorization, and causes losses, the decorator shall be responsible for compensation.

It depends on how you change it? Mainly look at the location of the sewer entrance to design how to change.

The situation is not clear how to change.