1. Advanced concepts: perfectly combine the concepts of solid-liquid separation, backflush (free of cleaning), integration and intelligence (double insurance control), and completely solve the problem of sewage lifting in underground toilets;2. Beautiful and graceful, strong corrosion resistance, long service life of the whole machine;3. Integrated structure, small floor space, easy to use by connecting the inlet and outlet, easy to install;4. High-grade electromechanical configuration, comprehensive design prevention, low fault rate, and easy to use.