Soakage pits drain kitchen wastes with which component?

• A. Chlorine solution
• B. Insecticides
• C. Heat treatment
• D. Grease trap

Answer: (D)

In on-site sanitation, soakage pits rely on clear, reasonably clean water to percolate into the soil. Kitchen waste, however, contains grease and fats that can quickly clog a soakage pit and reduce its effectiveness. A grease trap (grease interceptor) is used to remove these fats, oils, and greases before the wastewater reaches the soakage pit. It works by gravity: grease, being lighter, floats to the top while heavier solids settle, and the clarified liquid flows on to the soakage pit. Regularly cleaning out the collected grease is essential to keep the system functioning.

The other options don’t serve this purpose: chlorine solution would disinfect but not prevent clogging; insecticides are for pest control; heat treatment isn’t a practical component for drainage systems.