CSLB Class B General Contractor's License Practice Exam

When installing a chemical waste drain, it shall be connected to what?

1. Water main

2. Flushometer

3. Clarifier/interceptor

4. None of the above

The correct answer is: Clarifier/interceptor

When installing a chemical waste drain, it is essential to connect it to a clarifier or interceptor. This connection is critical because a clarifier or interceptor is designed to handle and treat chemical waste appropriately, ensuring that hazardous materials are separated from other effluents before they enter the municipal sewer system or treatment facilities. The role of the clarifier or interceptor is to segregate solids and lower the concentration of harmful chemicals, thus protecting the environment and public health from potential contaminants that could arise from unchecked chemical discharges. These systems are specifically engineered to manage different types of chemical wastes, adhering to environmental regulations and safety standards. On the other hand, connecting a chemical waste drain to a water main is not permissible, as it could contaminate the potable water supply. A flushometer is a device used in plumbing fixtures and is not suitable for managing chemical wastes. Therefore, connecting to a clarifier or interceptor aligns with industry best practices and regulatory compliance concerning the handling of hazardous materials.