How long do backflow preventers last?

Backflow preventers typically have a lifespan between 5 to 15 years, but this can vary greatly depending on several factors, including the following:

1. Type of Backflow Preventer: Different types of backflow preventers have varying lifespans. For instance, double check valve assemblies generally last about 5 years, while pressure vacuum breakers may last for up to 15 years.

2. Water Quality: The quality of the water passing through the backflow preventer can impact its lifespan. Higher sediment content or corrosive water may shorten the lifespan of the device.

3. Usage and Maintenance: Regular maintenance, such as testing and cleaning, can extend the lifespan of backflow preventers. Frequent and heavy usage may also lead to earlier wear and tear.

4. Environmental Factors: Exposure to harsh weather conditions, such as freezing temperatures, direct sunlight, or chemical exposure, can affect the longevity of backflow preventers.

It is important to consult the specific manufacturer's guidelines and local plumbing codes to determine the recommended replacement schedule for backflow preventers in your area. Regular inspections by a qualified plumber or technician can help identify any potential issues or wear and tear that may require early replacement.