CSLB General Building (B)Planning and EstimatingMedium
A contractor is requested to provide a bid for a new commercial kitchen. The plans specify the installation of a grease interceptor. What is the primary purpose of a grease interceptor in a commercial kitchen's plumbing system?
- ATo filter out solid food waste before it enters the sewer system.
- BTo prevent cooking oils, fats, and grease from entering the sanitary sewer system.
- CTo regulate water pressure for kitchen appliances.
- DTo neutralize acidic wastewater from dishwashers.
Show answer & explanationAnswer & explanation
Correct answer: B. To prevent cooking oils, fats, and grease from entering the sanitary sewer system.
Grease interceptors are specifically designed to separate fats, oils, and grease (FOG) from wastewater before it enters the public sewer system. FOG can solidify and cause blockages, leading to costly sewer backups and environmental issues.
Why the other options are wrong
- A. While some solids may be trapped, the primary function is FOG separation.
- C. Water pressure regulation is handled by pressure reducing valves, not grease interceptors.
- D. Neutralizing acidic waste typically requires a neutralization tank, not a grease interceptor.
Grease Interceptor Purpose
A grease interceptor (also known as a grease trap) is a plumbing device designed to intercept most greases and solids before they enter a wastewater disposal system.
- Prevents fats, oils, and grease (FOG) from entering sewers.
- Required in commercial kitchens and food processing facilities.
- Protects public sewer lines from blockages.
Memory trick: Grease Interceptor: FOG Fights Back.