The best way to remove grease from a sewer line?

• A. Plunger
• B. Cable snake
• C. Wire brush
• D. Porcupine

Answer: (D)

Grease coats the inside of sewer lines, sticking to the walls and forming a sticky film that isn’t easily moved by pushing or scraping near the opening. The porcupine tool is designed to address this by having multiple short, stiff scraping elements that rotate or are pulled through the line to scrub the interior surface. As it passes, these scrapers loosen and remove the grease from the pipe walls, allowing it to be flushed away.

A plunger works mainly for blockages at the trap or near the entry and doesn’t reach or remove grease deeper in the line. A cable snake can break up some solids but grease slicks tend to smear or push material further rather than clean the walls. A wire brush could damage the pipe and isn’t practical for running inside a sewer line. So, the porcupine method directly tackles the grease buildup inside the pipe, making it the most effective option.