Is the property responsible for the overflow and leakage of the main sewer pipe in the bathroom of the old community? What about the property?

The property is responsible for the daily operation, repair and maintenance of public facilities and equipment, so the public area is outside the entrance door and inside the building line, such as the main bathroom pipe of your home, and the property can't enter the room at all, so it can't be maintained daily. However, if the sewage well outside the main sewer pipe of your bathroom is blocked, causing water to flow back to your home, then this situation belongs to the property responsibility. Because outdoor sewage wells belong to facilities in public areas.

According to this logic, you can judge that if it is a property problem, you can provide evidence and communicate with the property. If you can't communicate, you can take civil action.

If it is not the property responsibility, then your home and upstairs owners do not regulate the use of sewers, causing water blockage and backflow. If the loss is not great, it is recommended to digest it yourself and install check valves and other facilities later to avoid backwater again. If the loss is large, you can collect evidence and bills of loss and directly sue the above residents. If you can't prove that you don't live, you have to bear part of the loss, and you have to bear the rest yourself, because you have the obligation to supervise the house, and you may have irregular use of the sewer, so you have to bear part of the responsibility.