Which of the following is not a sewer appurtenance?
(a) Storm regulator
(b) Flushing tank
(c) Water tank
(d) Manholes
I have been asked this question by my college professor while I was bunking the class.
This intriguing question comes from Devices Associated with Sewer topic in section Construction of Sewers, Sewer Appurtenances and Sewage Pumping of Environmental Engineering