Abstract:With the acceleration of urbanization, the proportion of water consumption in public buildings to the total urban water consumption has been increasing year by year. In recent years, although water-saving measures have been adopted in public buildings in China, there are still water waste problems caused by overpressure outflow, water loss of central air conditioning, and pipeline leakage. The implementation of water-saving activities and the application of water-saving technologies in public buildings need to be further strengthened.