Curtis Dietzsch is a development engineer for Wilden Pump & Engineering, LLC, Grand Terrace, Calif., a manufacturer of air-operated double-diaphragm (AODD) pumps. He can be reached at 909-512-1237 or For more information, please go to is a member of Dover Corporation’s Pump Solutions Group (PSG), Downers Grove, Ill., which is comprised of several pump companies including Almatec, Blackmer, EnviroGear, Griswold, Mouvex, Neptune, RedScrew and Wilden. For more information, visit