Illinois Plumbing Code Practice 2025 – 400 Free Practice Questions to Pass the Exam

The correct approach according to Illinois Plumbing Code practice is to trap food waste disposal units separately and connect them directly to the sanitary drainage system. This method is essential because it helps ensure proper drainage and minimizes potential blockages in the system that could arise from the accumulation of food waste.

Separately trapping the disposal unit allows for effective removal of waste while preventing backflow or contamination within the drainage system, which can occur if waste from other fixtures is connected. This approach not only adheres to the code requirements but also promotes better hygiene and efficiency in managing waste in plumbing systems.

Other methods like indirect connections or connecting with other fixtures could lead to various plumbing issues, such as contamination and improper drainage, which the code aims to prevent. Thus, maintaining a separate and direct connection for food waste disposals is a critical requirement in the Illinois Plumbing Code.