Required quality of inlet water: Standard municipal treated water Systematic treating flush: 2000 L/H Best working pressure: 0.1-0.3MPa Required temperature of inlet water; 5-45º C Size for connecting inlet and outlet pipe: 3/4" Size for connecting drain pipe: 1/2" Backwash controller: Auto flushing Backwash time: 1-12 days free setup KDF: 5--8years(600tons) Actiavated carbon: 2--3years(240tons)