... Low occupation local RO WATER TREATMENT EQUIPMENTDesalt rate over 99%RO pure water treatment is for producing drinking water, food factory ,beverage ... sand filters, main purpose is to remove the water contains sediment, manganese, rust, colloid material, mechanical ... (reins softener) Cationic reins used for water softening, primarily remove hardness of water.Fourth stage pretreatment (micro filter) ...