Illinois Plumbing Code Practice

What is the minimum elevation required for drinking fountain nozzles above the flood level rim of the receptacle according to Illinois Plumbing Code?

1. 1/2 inches

2. 1 inch

3. 2 inches

4. 3/4 inches

The correct answer is: 3/4 inches

The Illinois Plumbing Code specifies that drinking fountain nozzles must be at least 3/4 inches above the flood level rim of the receptacle. This requirement is crucial for preventing contamination of the water supply, ensuring that any water that may overflow from the receptacle cannot flow back into the drinking fountain nozzle. Maintaining proper elevation helps safeguard public health by ensuring that the drinking water remains uncontaminated by potential spillage or overflow. This standard is part of a broader set of regulations designed to ensure hygienic practices in public drinking water systems. The elevation of 3/4 inches strikes a balance between accessibility for users and protection against contamination. Other options suggest either insufficient or excessive heights that do not meet the specified standard in the plumbing code for these installations. The chosen elevation aligns with best practices in plumbing safety and hygiene.