
Singulair Systems

Williams & Bay is a Licensed Installer and Distributor of Norweco Products
Designed for domestic wastewater flows ranging from 500 to 1,500 gallons per day, performance of our line of Singulair systems is certified and listed by NSF International. Singulair systems are a trouble-free answer to domestic wastewater disposal and insure a safe, sanitary home environment.
The Singulair Green aerobic treatment system incorporates Norweco’s advanced aerobic treatment process, proven in hundreds of thousands of installations for decades, into a durable, watertight polyethylene tank. It is ideal for new or retrofit applications and can be installed easily in the most difficult jobsite with just a backhoe. Incorporating patent-pending support ribs and inherently strong arch shape, the durable Singulair Green tank will provide decades of reliable performance.
Single tank convenience; the Singulair Green contains pretreatment, aeration, clarification, filtration, flow equalization, optional disinfection and dechlorination all in one compact treatment unit. The need for additional treatment system tankage is eliminated saving time and money.
Homeowners now have unlimited site options for their dream home. Designed for domestic wastewater flows up to 600 gallons per day, the Singulair Green treatment unit is certified to NSF Standard 40 and our Bio-Kinetic system is certified as a chlorine disinfection device to NSF Standard 46. Underwriters Laboratories (UL) and the Canadian Standards Association (CSA) have certified and/or listed all electro-mechanical equipment and components. These listings provide the highest safety, reliability and quality.
How Could Singulair Systems Work For You?
Need Financial Assistance?
Norweco advanced treatment systems are an approved
Michigan Saves Septic System solution.
