What is a common result of a cross connection in plumbing systems?

A cross connection occurs when a potable water supply is linked to a non-potable source, creating a pathway for contaminants to flow into the drinking water system. This situation can arise from improper installations or lack of appropriate backflow prevention devices.

The primary risk associated with a cross connection is the potential for contamination of the potable water, which can lead to serious health risks for consumers. The bacteria, chemicals, or other pollutants from the non-potable source can enter the drinking water supply, making it unsafe for consumption. Various Kentucky Plumbing Code regulations are designed to prevent such occurrences by requiring specific designs and protection methods, like air gaps and backflow preventers, in order to safeguard public health.

In this context, options related to improving water pressure, enhancing drainage, or increasing efficiency do not directly address the significant hazard posed by cross connections, making the focus on contamination a critical point of understanding for maintaining safe and compliant plumbing systems.