Smoke testing (mechanical)
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Smoke testing refers to various classes of tests of systems, usually intended to determine whether they are ready for more robust testing. The expression probably was first used in plumbing in referri
A sanitary sewer manhole in Springdale, Arkansas with smoke coming out as a result of smoke testing for leaks
Smoke testing a sanitary sewer produces visible smoke at a residence in Springdale, Arkansas
Manhole
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A manhole, also called utility hole, maintenance hole, or sewer hole, is an opening to a confined space such as a shaft, utility vault, or large vessel. Manholes, typically protected by a manhole cove
Smoke testing (mechanical)
…is unusually high as this may also prevent detection of defects. Large downdraft fans, usually powered by gasoline engines, are placed on top of open manholes at either end of the section to be tested. If possible all lines in the manholes except for the line between the manholes are partially blocked. Smoke…
PMG manholes in a city street, Perth, Western Australia
Manhole being used to access sewer
Installation of a fiber-optic manhole in Brooklyn, New York
An uncovered manhole in Beirut, Lebanon