What is backflow prevention?

Backflow prevention refers to the use of devices and methods to stop contaminated water from flowing backward into clean water supplies. This is important to protect drinking water from pollutants and hazardous substances, which can occur due to changes in pressure or cross-connections in plumbing systems. Backflow prevention devices, such as check valves and air gaps, are commonly installed in homes, businesses, and public facilities. Regular testing and maintenance of these devices are essential to ensure they function correctly and comply with local regulations.