The RO system is for getting pure water or ultra-pure water from tap,river,well,ground,sea water. Application: 1. Food and Beverage, ... process as follows:1. Raw water pump-- provide the pressure to sand/carbon filter2. Sand filter-- get rid of turbidity, suspended ... matter, organic matter, colloid and so on3. Carbon filter--Odor, free chloride, organic matter, harmful matter and so on4 ...