according to the requirements of the new regulations, the property management company should invite the management unit of secondary water supply facilities to test the water quality of secondary water supply once every quarter according to the domestic water consumption standards and requirements of this municipality, and the facilities of secondary water supply water tank should be cleaned and disinfected every six months, and a qualified water sample test report should be provided. Users (owners) have the right to know the information related to cleaning and disinfection, and can also participate in the full-time supervision of cleaning and disinfection.