Who is responsible for the leakage of the owner's indoor main pipeline?

Legal analysis: First of all, it is necessary to determine what causes the water leakage in the pipeline, and the responsibility should be determined according to the following principles: 1. If the leakage of the pipeline is caused by improper use of the upstairs owner, the upstairs owner should bear the responsibility. 2. If the pipeline leaks due to the renovation of the downstairs owner, the downstairs owner shall bear the responsibility. 3. If the pipeline leaks due to the quality of the pipeline, we must first determine whether it is within the warranty period of the house. If it is within the warranty period, the developer should bear the corresponding responsibilities. If the warranty period is exceeded, the owner downstairs should bear the corresponding responsibilities. The upstairs owner is dedicated, but the pipeline is in the downstairs bathroom, and the upstairs owner cannot manage and maintain it.

Legal basis: Regulations on Property Management

Article 31 The construction unit shall undertake the warranty responsibility of the property according to the warranty period and scope stipulated by the state.

Fifty-first water supply, power supply, gas supply, heating, communications, cable television and other units shall bear the responsibility for the maintenance and conservation of related pipelines and facilities in the property management area according to law. If the units specified in the preceding paragraph temporarily occupy or dig roads and sites due to maintenance, they shall promptly restore the original state.

Fifty-fifth property security risks, endangering public interests and the legitimate rights and interests of others, the responsible person shall timely repair and maintenance, the relevant owners should cooperate. If the responsible person fails to perform the maintenance obligation, it can be maintained by the property service enterprise with the consent of the owners' meeting, and the expenses shall be borne by the responsible person.