I bought a commercial house and delivered it for one year. Because the main toilet pipe is blocked, the property will not be handled. Which department should I complain about? thank you

The owner of this sewer is jointly responsible.

According to the Property Law of People's Republic of China (PRC)

Article 70 The owner shall have the ownership of the exclusive part of the building such as the business building, and the condominium of the * * * part other than the exclusive part.

Article 71 An owner shall have the right to possess, use, profit from and dispose of the exclusive part of his building. The owner's exercise of rights shall not endanger the safety of the building or damage the legitimate rights and interests of other owners.

Seventy-second owners of the building outside the exclusive part of the * * * part, enjoy rights and obligations; Never give up your rights or fulfill your obligations. When the owner transfers the residential and business premises in the building, part of its * * * ownership and * * * management rights are transferred together.

Eighty-first owners can manage their own buildings and ancillary facilities, but also entrust property services companies or other managers to manage them. The owner has the right to replace the realty service enterprise or other managers selected by the construction unit according to law.