Illinois Plumbing Code Practice

Where should the discharge from a garbage can washer NOT be directed?

1. Grease interceptor

2. Public sewer

3. Storm drain

4. Waste bin

The correct answer is: Grease interceptor

The correct choice for where the discharge from a garbage can washer should not be directed is to the grease interceptor. Grease interceptors are designed to handle waste that contains fats, oils, and grease from kitchen drains. The discharge from a garbage can washer, which may contain residues from various waste materials, can interfere with the operation of the grease interceptor and compromise its effectiveness. Discharging the wastewater from a garbage can washer directly into a public sewer is typically acceptable, as this system is designed to handle a variety of wastewater discharges. Similarly, routing the discharge to a storm drain is usually prohibited due to the potential for contamination, but it’s not as critical as the grease interceptor. Directing the discharge to a waste bin is a practical option, as this keeps contaminants out of the plumbing systems and allows for proper disposal. Thus, the grease interceptor is the least suitable option for this type of discharge, as it specifically handles materials that are quite different in nature from those typically associated with a garbage can washer.