All residential garage drains shall be _____________ drains.

Residential garage drains are specifically designed to manage water, particularly from vehicles, and are required to prevent any contaminants from entering the plumbing system improperly. The correct classification of these drains is "bucket type." Bucket type drains feature a design that captures debris and allows sediment to settle, which is essential in a garage environment where oil, grease, and other materials might accumulate.

These drains effectively collect water while minimizing the risk of clogging, as they have larger holding areas and can be cleaned out more easily. By maintaining the functionality of these drains and ensuring that they can handle potentially hazardous materials, they contribute to a safer and more sanitary environment.

In contrast, other types of drains have different functions and limitations that do not align with the specific needs and requirements of garage installations. For example, trap type drains generally involve water traps that can effectively prevent sewer gases from leaving the system but may not be as effective in handling larger debris or contaminants found in a garage setting.