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  2. Smoke testing (mechanical) - Wikipedia

    en.wikipedia.org/wiki/Smoke_testing_(mechanical)

    Smoke testing a sanitary sewer produces visible smoke at a residence in Springdale, Arkansas The area around the section being tested is searched for smoke plumes. Plumes coming from plumbing vents or the interface between the fan shroud and manhole rim are normal; however, smoke plumes outside of the manhole rim are not.

  3. Sanitary manhole - Wikipedia

    en.wikipedia.org/wiki/Sanitary_manhole

    Exfiltration testing uses water to fill up a manhole and measurements are taken to detect leaks. In a modern time, vacuum testing is performed to check integrity of manholes and identify for leaks. [32] Another common testing method is smoke testing. In this method, sandbags are used to seal a sewer section, then smoke is pumped into a manhole.

  4. National Association of Sewer Service Companies - Wikipedia

    en.wikipedia.org/wiki/National_Association_of...

    The National Association of Sewer Service Companies or NASSCO is a not-for-profit North American trade organization, established in 1976 "to increase the awareness of aging underground infrastructure and to provide viable solutions through education, technical resources and industry advocacy". [1]

  5. Smoke testing - Wikipedia

    en.wikipedia.org/wiki/Smoke_testing

    Smoke testing may refer to: Smoke testing (electrical) looking for smoke when powering electrical items for the first time; Smoke testing (mechanical) the practice of using smoke to test for leaks; Smoke testing (software) trying the major functions of software before carrying out formal testing; Smoke testing, with theatrical smoke and fog

  6. Sewage regulation and administration - Wikipedia

    en.wikipedia.org/wiki/Sewage_regulation_and...

    Sewer systems are usually administered on the local level, usually citywide, and usually by the city itself. These systems, which may operate independently or as a subdivision of a city or other municipal agency, are typically operated as Enterprises , meaning that they produce enough revenues to fund their own activities.

  7. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Ventilating or ventilation (the "V" in HVAC) is the process of exchanging or replacing air in any space to provide high indoor air quality which involves temperature control, oxygen replenishment, and removal of moisture, odors, smoke, heat, dust, airborne bacteria, carbon dioxide, and other gases. Ventilation removes unpleasant smells and ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Mechanical, electrical, and plumbing - Wikipedia

    en.wikipedia.org/wiki/Mechanical,_electrical...

    A laboratory for testing automotive engines, showing plumbing and electrical setups integrated into the building. Competent design of plumbing systems is necessary to prevent conflicts with other trades, and to avoid expensive rework or surplus supplies. The scope of standard residential plumbing usually covers mains pressure potable water ...