Profile: Chemdet Inc. deals with chemical, food, hydrocarbon, pharmaceutical, pollution, power, semiconductor and solid waste online. We supply equipment and devices to clean the interiors of open or closed large or small containers, tanks and vessels. The Rotaball stainless steel tank washer is a compact, rotating-ball cleaning device used to wash the interiors of medium and smaller sized tanks. Turbodisc tank washers are designed to produce a dense all-around spray pattern and to operate at low pressures.