An HP Jetter (or high-pressure water jetter) uses a high-pressure water jet to clear blockages in drains, sewers, and other pipe systems. Their responsibilities include assessing the area, clearing obstructions, connecting the equipment, selecting nozzles, and directing the water jet to clear blockages. They may also be involved in drain and sewer cleaning, CCTV inspections, drain descaling, and drain relining, according to Thanet Drainage.