Reliable Safety with the Watts SD 3 Backflow Preventer Over 500,000 pump cycles have been logged in tests of the Watts SD 3 Backflow Preventer. Such performance proves its robust protection for beverage dispensing systems. This sd-3 watts device uses a compact design with two checks and an atmospheric vent to keep carbonated beverages or CO2 from contaminating drinking water …
A Technician’s Guide To Servicing Watts Series 7 Systems








