Which equipment is used to remove blockages and clean sewer lines by high-pressure water jets?

• A. Diaphragm
• B. Centrifugal
• C. Magnet drive
• D. Hydraulic Jetter truck

Answer: (D)

High-pressure water jetting to clear sewer lines is done with a hydraulic jetter truck. This equipment combines a high-pressure pump, a water tank, and a long hose with a specialized nozzle designed for sewer work. The pump pressurizes water to very high levels and pushes it through the hose into the pipe, where the nozzle directs jets that scour the pipe walls, break up grease, mineral buildup, and roots, and flush debris back toward the main. The system is mobile and built to deliver continuous cleaning power deep into lines. Other pumping devices like a diaphragm pump or a centrifugal pump aren’t optimized for the sustained, extreme-pressure jetting needed for blockages, and a magnet drive pump isn’t used for heavy-duty sewer jetting.