water treatment, process raw water into pure water. maked by sus304 material. automatic control. Usually, this system contains: ... tank.1. sand filter:This filter can remove the impurity in the water like silt, grain, suspended matter , etc..2. active carbon ... system ,the ozone can mix with the water better, and kill the germ in the water. 1raw water tankV=3m3, sus3042sand filterφ500mm×H2400mm ...