Who should compensate for the loss caused by the toilet's anti-water?

Legal analysis: First of all, investigate the cause of sewer leakage (you can apply for identification if necessary). If it is caused by the pipeline of property management or other non-household reasons, the property or relevant personnel may be required to bear the responsibility.

Legal basis: Article 285 of the Civil Law of People's Republic of China (PRC), the realty service enterprise or other managers are entrusted by the owners to manage the buildings and their ancillary facilities within the building division in accordance with the provisions of the third part of this law on realty service contracts, accept the supervision of the owners, and promptly answer the owners' inquiries about realty services. Property service enterprises or other managers shall implement emergency measures and other management measures implemented by the government according to law, and actively cooperate with relevant work.