How does Weifang property report to the sewer separately?

To change the independent sewer on the first floor, it must be approved by the property management company. If it is not approved, it cannot be changed. If the change affects the adjacent users upstairs, then the property management company has the right to restore your original state. If the property management company approves, then you can ask a master who specializes in modifying sewers to operate at home. First, you have to open the concrete floor, which means you have to dig out the soil. Before that, you need to design how to place the drain pipe. After all the water pipes are laid out, the master can backfill the soil and finally brush the cement, which will be completed in a few days.