What is an indirect waste connection?

An indirect waste connection refers to a method of discharging waste that allows the waste to flow into the drainage system without a direct physical connection. This type of connection is used to prevent the potential for backflow or contamination of the potable water supply. It typically involves the waste being discharged through a trap or receiving fixture that creates an air gap before it enters the drainage system. This design minimizes the risk of harmful substances entering the drinking water supply and ensures that any waste is properly routed without risking contamination.

In contrast, other options describe different types of connections or practices. A direct connection from fixtures to the drainage system would allow for potential issues such as backflow. Requiring backflow prevention indicates a scenario that involves different plumbing principles, and discharging waste outside the building does not align with the typical definition of an indirect waste connection.