Backflow prevention services are necessary to impede the flow of non-potable water from sewage and public drainage systems into your plumbing systems, which occur at cross-connections. They are important for health and safety in terms of keeping pollutants and contaminants out of drinking water and essentially maintaining clean water flow through your property’s piping. Many plumbing regulations now require backflow preventers in place. At Priority Plumbing Service, our backflow prevention plumbers can provide installations and repairs of backflow prevention devices in addition to testing for building inspections. Unlike most other companies, our San Diego backflow prevention technicians are certified professionals.