The course material describes the two types of cross-connections, direct connection and indirect connection. The course material presents the two types of backflow, backpressure and back-siphonage, and describes the physical backflow prevention methods, including air gap and the mechanical backflow assemblies and devices. This course material is based on Water Supply Protection.

At the conclusion of this course, the learner will have a better understanding of water supply protection in the food service industry as well as an understanding of the following topics:

• Mechanical devices for high hazard situations
• Mechanical devices for low hazard situations
• Installation and use of check valves for the prevention of backflow
• Food service establishment water supply cross-connections
• Air gaps and air breaks for drains and waste