How did the court decide that the new house was damaged by repeated soaking due to pipe blockage, and the owner sued the property and the upstairs owner?

The final judgment of the court is that property, owners and developers all have certain responsibilities. Mr. Hu of Zhangjiajie, Hunan bought a new house and rented it to others after renovation. Collecting rent every month is beautiful, but it doesn't last long. In a few years, the house was soaked in sewage. Finally, the renter couldn't stay any longer and checked out. Feeling very wronged, Mr. Hu called the appraisal department to appraise the pipes in the building. Finally, he found that there was something wrong with the sewage pipe in the corridor, which was mixed with all kinds of hair, paper and cloth. Finally, the sewage could not be discharged, causing Mr. Hu's house to be soaked in sewage. ?

In a rage, Mr. Hu took all the owners, properties and developers upstairs to court. Mr. Hu believes that it is the responsibility of the upstairs owners, and improper property management eventually leads to his house being soaked in sewage. After a simple calculation, the loss is equivalent to about 1 10000 yuan. The court accepted the case. After investigation, it was finally found that the kitchen waste pipe and sewage pipe were combined on the third floor of the building, and Mr. Hu's house happened to be on the third floor, which was also the direct reason why his house was soaked in sewage. ?

The court finally ruled that all three parties were responsible. Developers have defects in the design of building pipelines and should bear the main responsibility, accounting for 65% of the main responsibility. However, 20 owners above the third floor need to bear 30% responsibility for improper sewage discharge, and the property, as a service provider, should carry out sewage treatment on the pipeline regularly, so it should bear 5% responsibility. However, the court did not calculate according to 1 10000 yuan. After detailed calculation by the court, the final compensation was more than 40,000 yuan. At the same time, in order to ensure the harmonious neighborhood relationship, after consultation, each of the 20 owners only needs to compensate Mr. Hu 100 yuan. In the end, the case ended successfully. All three parties agree on the division of responsibilities, and the final judgment shall be executed according to the first-instance judgment. ?