Automatic filter is a use of filter the water directly intercept impurities, remove water suspended particles, reduce turbidity, purifying water quality, reduce the systems such as bacteria and algae produce rust dirt, to purify the water quality protection system and other equipment normal work precision equipment, water inlet of the body by into fully automatic filter, because the intelligent (plc pac) design, the system can automatically identify impurities sedimentary degree, to drain valve signal automatic decontamination automatic filter overcome traditional filtering products, and the small amount of vulnerable to contamination jams filter to remove part and could not be monitoring filter cleaning and many other state shortcomings, is of the original water filters and filter for automatic for automatic cleaning the function of the pollution, and clean sewage system when uninterrupted water supply, a high degree of automation.