Why might a customer need a backflow prevention device installed?

A customer might need a backflow prevention device installed primarily to meet legal requirements and protect public health. Backflow prevention devices are critical in ensuring that water supply systems remain uncontaminated. They prevent unsafe water from flowing back into the potable water supply, which could occur due to changes in pressure or other influences in the plumbing system.

The legal requirements often stem from public health regulations that mandate the use of these devices in specific situations, such as when connecting to irrigation systems or industrial processes. The potential health risks posed by contaminated water are significant, making the installation of backflow prevention devices essential for safeguarding the health of the community. Therefore, ensuring compliance with these regulations not only helps protect public health but also aids in preventing health crises associated with contaminated water sources.