Aqua Drill Tank Spider technology is a patent pending technology that complements 3D nozzle cleaning projects. Water Jet Power of 600 or 1200 HP can be utilized without the spherical overspray conventional 3D nozzles provide. The Tank Spider can unfold while in operation and provide effective cleaning of tank ceilings or large diameter vertical tank sections. An optional pneumatic drive makes it possible to control cleaning speeds during the cleaning operation. The Tank Spider system concentrates all available cleaning power on the vessel wall increasing theoretical cleaning speed by 97%.