How to identify the responsibility for the burst of upstairs water pipes and the water flow downstairs?

Legal analysis: the responsibility for the burst water from the upstairs water pipe to the downstairs is determined: after the warranty period expires, the owner is responsible for the maintenance of the water leakage caused by the normal use of the facilities in the house, and the expenses shall be borne by the owner. If water leakage causes losses to other obligees and obstacles or losses to neighboring parties, the infringement shall be stopped, obstacles removed and losses compensated. Public facilities leak, the property management company is responsible for maintenance.

Legal Basis: Interpretation of the Supreme People's Court on Several Issues Concerning the Application of Laws in the Trial of Commercial Housing Contract Disputes Article 13 If the buyer requests to terminate the contract and compensate for the losses because the quality of the house seriously affects the normal living and use, it shall be supported. If the house delivered for use has quality problems, the seller shall bear the maintenance responsibility during the warranty period; If the seller refuses to repair or delays the repair within a reasonable period of time, the buyer may repair it by himself or entrust others to repair it. The repair costs and other losses caused during the repair period shall be borne by the seller.