Water and Wastewater Terms Beginning P

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

porcupine

A type of wastewater collection system cleaning tool the same diameter as the pipe being cleaned, used with a mechanical rodder. Its function is to scour lines of light buildup. The tool is a steel cylinder having solid ends with eyes cast in them to which a cable can be attached and pulled by a winch. Many short pieces of cable or bristles protrude from the cylinder to form a round brush.