For many abrasive waterjet applications, underwater submerged cutting is the best solution. For materials like steel, stainless, aluminium, copper, bronze, Inconel, titanium, and other metals, as well as materials like glass, stone, marble, granite, etc., submerged cutting offers two big advantages. Reduced noise and less mess. The typical high pressure waterjet piercing process results in an abrasive jet stream that “rooster tails” back into the environment for the duration of the pierce, anywhere from just a few seconds on the thin materials, up to several minutes, depending on the thickness and hardness of the material. If the material is not submerged, that diffused stream shoots back into the environment, and literally gets everywhere including on the beams, rails, bearings, controller, electronics and anywhere else.