Glossary of Water and Wastewater Terms

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5 random terms from our glossary

manhole jack

A device used to guide the tag line into the wastewater pipe without causing unnecessary wear and provide support as the tag line is pulled back and forth.

gas, sewer

See sewer gas.

saddle

A fitting mounted on a pipe for attaching a new connection. This device makes a tight seal against the main pipe by use of a clamp, adhesive, or gasket and prevents the service pipe from protruding into the main.

sleeve

(1) A pipe fitting for joining 2 pipes of the same nominal diameter in a straight line. (2) A tube into which a pipe is inserted. (3) A device to protect a shaft at its bearing or wear points.

chemical equivalent

The weight in grams of a substance that combines with or displaces one gram of hydrogen. Chemical equivalents usually are found by dividing the formula weight by its valence.