How often does a backflow assembly fail to work properly?
Although a backflow prevention assembly is designed to prevent contamination of our potable water system, it is subject to failure. Foreign matter in the water supply system, such as sand, grit or rust particles from the piping system, can foul or damage internal parts of a backflow preventer. Normal wear and tear of the assembly will eventually cause the assembly to fail and need repair. Because the backflow assembly is subject to failure due to all of the above, it is required that they be tested on an annual basis.
