Water and Wastewater Terms Beginning B

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

backflow device

(1) An apparatus that is placed in a wastewater collection lateral to prevent accidental reverse flow or backflow of wastewater into a building. (2) An apparatus used on potable water systems to prevent water from flowing back into a main from a private service line, thereby eliminating any possible contamination.