1). Saving the Equipment investment, we don't need to set up the pool or the tank and it can save a large number of investment. Besides, it can make full use of the tap water pipe network water pressure to reduce the forcing pump selection and the equipment investment. 
2). Healthy without pollution, water supply system from the water pipe network to the user taps is fully enclosed. It can prevent the pollutant entering the system and the water can't directly contact with the air, as for the filter, it adopts food grade stainless steel production, there is no secondary pollution chance, not only environmental but also healthy.