Texas Food Managers Certification Practice Exam

Potable water requires a minimum air gap between the supply outlet and the water drain that equals?

1. 1 inch

2. 2 inches

3. 4 inches

4. 6 inches

The correct answer is: 1 inch

The correct answer is that potable water requires an air gap of at least 1 inch between the supply outlet and the water drain. This regulation is crucial for preventing contamination of the potable water supply. An air gap serves as a physical barrier that prevents backflow, which can occur due to pressure changes in the plumbing system. This gap effectively stops any potential contaminants from flowing back into the drinking water from the drain. Ensuring this minimum distance helps maintain the safety and quality of the water, protecting public health. In food service and other settings where water is used, complying with this standard is essential for food safety and sanitation. Maintaining proper practices around potable water supply and drainage ensures that no hazardous materials can reach the drinking water, thus minimizing the risk of foodborne illnesses and other health concerns.