A trap used in a commercial kitchen to lower the amount of grease entering the drain line is called a

• A. Grease trap
• B. P-trap
• C. S-trap
• D. Trap primer

Answer: (A)

Grease traps are designed to remove fats, oils, and grease from kitchen wastewater before it enters the plumbing system. In a commercial kitchen, grease and oil float to the top of the trap while the water drains out, letting the greasy layer stay behind. This separation reduces grease buildup and clogs in the drain lines and sewer system. The other options aren’t used for this purpose: a P-trap or S-trap provides a water seal to block sewer gases in individual fixtures but doesn’t separate grease, and a trap primer ensures water in traps to prevent drying, not grease removal.