Which device is specifically used to remove grease from sewer lines?

Which device is specifically used to remove grease from sewer lines?

• A. Porcupine
• B. Plunger
• C. Cable
• D. Drill

Answer: (A)

Removing grease from sewer lines relies on a tool that physically scrapes and scrubs the pipe’s interior to loosen and detach sticky deposits from the walls. The porcupine head is designed for this job: it has many short, rugged projections that rotate and press against the pipe surface, scraping away the greasy film so the loosened material can be flushed out. This targeted mechanical action is what makes it effective for grease buildup inside mains and laterals. In contrast, a plunger relies on suction and pressure near the opening, which isn’t enough to remove heavy or widespread grease deeper in the line. A cable or auger can help with certain blockages but isn’t specialized for breaking up and dislodging greasy coatings. A drill is not used for cleaning the inside of sewer pipes.

Removing grease from sewer lines relies on a tool that physically scrapes and scrubs the pipe’s interior to loosen and detach sticky deposits from the walls. The porcupine head is designed for this job: it has many short, rugged projections that rotate and press against the pipe surface, scraping away the greasy film so the loosened material can be flushed out. This targeted mechanical action is what makes it effective for grease buildup inside mains and laterals.

In contrast, a plunger relies on suction and pressure near the opening, which isn’t enough to remove heavy or widespread grease deeper in the line. A cable or auger can help with certain blockages but isn’t specialized for breaking up and dislodging greasy coatings. A drill is not used for cleaning the inside of sewer pipes.