Is periodic testing required for reduced pressure zone backflow preventers?
Yes, and this is to ensure that the valve is working properly and is a requirement of many states and cross connection control programs. Test cocks are provided on the valve for this purpose and manufacturers are required to furnish field-testing information. Q: Should a backflow preventer be installed in the water supply line to each residence? A: Because of the growing number of serious residential backflow cases, many water purveyors are now requiring the installation of approved dual check valve backflow preventers at residential water meters. They are also educating the public concerning cross connections and the danger of backflow into the local water supply. Since water purveyors cannot possibly be responsible for or monitor the use of water within a residence, the requirements for these cross connection control programs are increasing throughout the country. Q: What is a cross connection control program? A: This is a combined cooperative effort between plumbing and health offic
