What is a permanent cross-connection?

A permanent cross-connection is defined as a connection between potable (safe drinking water) and non-potable (unsafe for drinking) systems that is specifically designed to remain in place indefinitely. This type of connection poses a significant risk of backflow, where contaminants from the non-potable system can enter the potable system, leading to potential health hazards.

Unlike temporary links, which are meant for short-term use and can be easily disconnected, or fluctuating connections that might vary based on operational needs, a permanent cross-connection is established to function continuously and is not intended for removal or alteration. It is essential for water safety regulations and plumbing codes to be adhered to in order to prevent such connections and safeguard public health.

In summary, recognizing a permanent cross-connection is crucial because it represents a systemic risk that requires monitoring and management to protect potable water supplies.