Which statement accurately describes a restriction on grease interceptors?

Which statement accurately describes a restriction on grease interceptors?

• A. They must be located near the main sewer line.
• B. They may not be located where surrounding temperatures under operating conditions are less than 40°F.
• C. They require no venting.
• D. They can be located anywhere regardless of temperature.

Answer: (B)

Grease interceptors rely on liquids flowing through them to separate grease from wastewater, and their performance can be hampered if fats solidify inside the unit. When ambient temperatures fall below about 40°F, oils and fats can begin to solidify, which reduces the interceptor’s efficiency, can cause clogs, and makes maintenance harder. Because of this, codes restrict placing interceptors in spaces where the temperature could drop under operating conditions below 40°F, or require those spaces to be heated to keep above that level. The other statements don’t reflect this temperature-related restriction. Location near the main sewer line isn’t a universal rule, and claims about no venting or placing the unit anywhere regardless of temperature ignore the practical and code-based requirements for proper performance and longevity.

Grease interceptors rely on liquids flowing through them to separate grease from wastewater, and their performance can be hampered if fats solidify inside the unit. When ambient temperatures fall below about 40°F, oils and fats can begin to solidify, which reduces the interceptor’s efficiency, can cause clogs, and makes maintenance harder. Because of this, codes restrict placing interceptors in spaces where the temperature could drop under operating conditions below 40°F, or require those spaces to be heated to keep above that level.

The other statements don’t reflect this temperature-related restriction. Location near the main sewer line isn’t a universal rule, and claims about no venting or placing the unit anywhere regardless of temperature ignore the practical and code-based requirements for proper performance and longevity.