Help protect our water Do I Need to Install a Backflow Device?
If you meet one of the criteria below, an approved “reduced pressure zone backflow prevention assembly” must be installed.
Commercial & Industrial Business (Not used solely for residence) - installed immediately downstream from the meter.
Residential – Subdivisions (Privately owned water systems) - installed immediately downstream from the master water meter.
Residential – Single Family Homes & Duplexes - an approved reduced pressure zone backflow prevention assembly must be installed on any boiler, swimming pool, in-ground irrigation system, or yard hydrant that has a permanent connection to the home’s water piping system.
Residential – Apartment Buildings & Complexes - installed immediately downstream of any water meter serving general maintenance purposes or serving a boiler, swimming pool, in-ground irrigation, or a yard hydrant.
Fire Protection Systems - installed on all new and existing fire protection systems, which have any of the following:
- Interconnections with auxiliary supplies such as reservoirs, rivers, ponds, wells, mills, or other industrial water systems.
- Antifreezes or other additives in the fire protection system.
- Any other facility, connection, or condition that may cause contamination including external connections for a fire department pump truck.
