Which type of interceptor requires the greatest minimum trap seal?

The type of interceptor that requires the greatest minimum trap seal is indeed a Type I interceptor. These devices are typically used for applications involving the collection of food waste and grease. The greater minimum trap seal is necessary to prevent odors and potential sewer gases from escaping into the building. This is especially important in commercial settings, such as restaurants, where maintaining sanitation and health standards is crucial.

In contrast, Type II, III, and IV interceptors have different functions and applications that do not necessitate as high a trap seal. For instance, Type II interceptors are generally designed for smaller food service operations, while Type III interceptors might be used for specific types of wastewater that do not contribute as significantly to odor problems. Type IV interceptors are designed for special considerations and may not deal with grease to the same extent as Type I. Therefore, the minimum trap seal requirements are based on the anticipated volume and type of materials being intercepted, leading to Type I interceptors needing a greater minimum to effectively manage the waste involved.