All commercial garage drains shall connect to a _____________ interceptor.

All commercial garage drains are required to connect to a Type I interceptor to effectively remove contaminants and prevent them from entering the public sewer system. A Type I interceptor is specifically designed to handle the types of waste typically found in commercial garages, including oils, greases, and other automotive fluids. This is crucial for maintaining environmental standards and ensuring the proper treatment of wastewater, as these substances can cause significant harm to wastewater treatment facilities and the environment.

Using a Type I interceptor ensures compliance with local plumbing codes, which are established to protect both public health and safety as well as environmental integrity. The choice of interceptor is important to comply with regulations regarding the disposal of potentially hazardous materials, as improper management can lead to contamination of local waterways and soil.

In contrast, the other types of interceptors, such as Type II, Type III, and Type IV, are designed for specific applications that do not apply to the conditions typically found in commercial garages. Therefore, a Type I interceptor is the most suitable and code-compliant choice for maintaining the integrity of the plumbing system in such facilities.