Water and Wastewater Terms Beginning E

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

eductor (e-DUCK-ter)

A hydraulic device used to create a negative pressure (suction) by forcing a liquid through a restriction, such as a Venturi. An eductor or aspirator (the hydraulic device) may be used in the laboratory in place of a vacuum pump. As an injector, it is used to produce vacuum for chlorinators. Sometimes used instead of a suction pump.