Islam Seliem is a Product Manager for All-Flo, Grand Terrace, CA, USA, a leading manufacturer of air-operated double-diaphragm (AODD) pumps and fluid-handling solutions for industrial markets. He can be reached at [email protected] or (909) 512-1298. All-Flo is a product brand of PSG®, Oakbrook Terrace, IL, USA, a Dover company. PSG is comprised of several leading pump companies, including Abaque™, All-Flo, Almatec®, Blackmer®, Ebsray®, em-tec, EnviroGear®, Griswold®, Hydro Systems, Mouvex®, Neptune™, Quattroflow™, RedScrew™ and Wilden®. You can find more information on All-Flo at all-flo.com and on PSG at psgdover.com.