... radium. RO system is widely used in water supply treatment, purification for tap water, seawater and brackish water, pure water and ultra-pure ... key equipment of pure water plant.3>Main equipment included that pre-treatment ,RO system,Washing system etc.(A).Pre- ... water tank is empty, the RO system will automatically run to produce the pure water.4>Process:Raw water ->Raw water tank -> Raw water ...