A reduced pressure zone device, otherwise known as a RPZ or RPZD, is a type of backflow preventer used to guard against the polluting effects of backflow in your sewer, irrigation and water system.  Annual RPZ testing is required for most major metropolitan areas, so make sure you turn to professional, certified and licensed RPZ testing technicians like the ones at City Backflow Testing.

When your family’s welfare is at stake, as well as the welfare of the community, make sure your backflow preventers are working properly.  A quality RPZ testing annually will allow you to sleep comfortably at night without worrying about backflow.