If exams are submitted:	Course certificates will be mailed:
Before December 19	Before December 22
After December 19	Early January

If exams are submitted:

Course certificates will be mailed:

Before December 19

Before December 22

After December 19

Early January

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

balling

A method of hydraulically cleaning a wastewater collection pipe or storm drain by using the pressure of a water head to create a high cleansing velocity of water around a cleaning ball. In normal operation, the ball is restrained by a cable while water washes past the ball at high velocity. Special cleaning balls have an outside tread that causes them to spin or rotate, resulting in a scrubbing action of the flowing water along the pipe wall.