The property broke the water pipe.

Hello, I don't know the construction date and design structure of your house, so your answer may have some deviations, please forgive me. In my personal experience, the sewer pipes on the first floor usually lead directly to septic tanks or sewage wells. In old-fashioned houses, the blocked pipes may first affect the doors on the second floor.

According to the content of property inspection, whether the water supply and drainage project is qualified is an inspection content. If the property company determines that the sewer pipe is intact, smooth and recorded through inspection, then the later pipe blockage is caused by improper use by users. This situation may be that the decoration workers rushed the blockage into the pipeline during the construction process, or it may be that the blockage accidentally slipped during the daily use in the later period. So the first thing is to determine whether the pipeline is in good condition at the time of delivery (I don't know the specific delivery time of your home). The property management company shall conduct on-site supervision and guidance on the construction process during the construction process. The expenses incurred should also be differentiated according to the reasons, basically referring to the principle of who uses, who benefits and who pays.