An Asse 1022 Dual Check Valve provides a practical way to support potable-water backflow protection where local code allows it. It helps prevent contaminants and corrosive substances, such as carbonic acid, from entering drinking water. Using an approved device helps safeguard potable supplies while supporting compliance with local and national plumbing requirements. Asse 1013 Manufacturers such as Watts produce backflow …
How to Inline Test an Asse 1022 Valve Without Shutting Down the Mains








