957 & 957RPDA 8'' 10'' Backflow Preventer Repair | Watts Repairs

Join the experts at Watts as they walk you through the inspection and repair of the 957 and 957RPDA backflow prevention assemblies, sizes 8" - 10". This video addresses basic assembly maintenance, relief valve repair and check inspection. To learn more about backflow, cross connections and water safety, check out http://www.watts.com