Residential treatment systems are designed for domestic wastewater flows ranging from 500 to 1,500 gallons per day. The Norweco residential product line includes our Singulair systems which are certified to NSF Standard 40 and include the Bio-Kinetic system which is certified to NSF Standard 46; The Hydro-Kinetic system which is certified to NSF Standards 40 & 245 and certified to CAN/BNQ Standards 3680-600 and 3680-910; and the Singulair R3 system which exceeds the effluent requirements of NSF/ANSI Standards 40, 245 and 350. Norweco residential treatment systems are the trouble-free answer to domestic wastewater disposal and insure a safe, sanitary home environment.