Water and Wastewater Terms Beginning U

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

U-tube

(1) A pipe shaped like a U that is constructed in a force main to raise the dissolved oxygen (DO) concentration in the wastewater. (2) U-tube manometers are used to indicate the pressure of a gas or liquid in a contained area, such as a pipeline or storage vessel.