The PAT 360-HD heavy-duty combination truck is designed to remove sand, grit and other debris in difficult cleaning situations. This multipurpose cleaning truck utilizes the Polston Process and Combination3 technology—a combination of jetter, vacuum and downhole pump—to provide a complete, standalone cleaning system for large diameter lines, digesters, grit chambers, lift stations, water treatment plants, ponds, lagoons and other hard-to-clean environments.