What is a cross-connection?

A cross-connection is defined as a direct link between potable (safe) water and a source of contamination. This connection poses a significant risk because it can allow pollutants, such as chemicals or bacteria, to flow back into the clean water supply through a process known as backflow. Understanding cross-connections is vital in food, lodging, and institutional settings to ensure the safety of drinking water and to protect public health.

Identifying and preventing cross-connections is crucial in maintaining sanitary conditions in plumbing systems, especially in environments where the risk of contamination is high, such as restaurants, hotels, and hospitals. By actively avoiding cross-connections, facilities can maintain the integrity of their water supply and adhere to health and safety regulations.