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  2. Siphon - Wikipedia

    en.wikipedia.org/wiki/Siphon

    The Romans used inverted siphons of lead pipes to cross valleys that were too big to construct an aqueduct. [41] [42] [43] Inverted siphons are commonly called traps for their function in preventing sewer gases from coming back out of sewers [44] and sometimes making dense objects like rings and electronic components retrievable after falling ...

  3. Rivervale Inverted Siphons - Wikipedia

    en.wikipedia.org/wiki/Rivervale_Inverted_Siphons

    The Rivervale Inverted Siphons, also known as the Rivervale Tunnel, are a historic flood control project in rural Poinsett County, Arkansas.It is essentially a very large concrete culvert, which channels the water flow of Ditch Number 4 under the Right Hand Chute Little River, into which it would normally drain.

  4. Sanitary sewer - Wikipedia

    en.wikipedia.org/wiki/Sanitary_sewer

    A lift station is a sewer sump that lifts accumulated sewage to a higher elevation. They may also be used to prime an inverted siphon used to cross underneath rivers or other obstructions. The pump may discharge to another gravity sewer or directly to a treatment plant. [6]

  5. Trap (plumbing) - Wikipedia

    en.wikipedia.org/wiki/Trap_(plumbing)

    Inverted siphoning occurs below the line "A". Examples of traps In plumbing , a trap is a U-shaped portion of pipe designed to trap liquid or gas to prevent unwanted flow; most notably sewer gases from entering buildings while allowing waste materials to pass through.

  6. Roman aqueduct - Wikipedia

    en.wikipedia.org/wiki/Roman_aqueduct

    This is an accepted version of this page This is the latest accepted revision, reviewed on 27 October 2024. Type of aqueduct built in ancient Rome See also: List of aqueducts in the Roman Empire The multiple arches of the Pont du Gard in Roman Gaul (modern-day southern France). The upper tier encloses an aqueduct that carried water to Nimes in Roman times; its lower tier was expanded in the ...

  7. Drain-waste-vent system - Wikipedia

    en.wikipedia.org/wiki/Drain-waste-vent_system

    The key to a functional island fixture vent is that the top elbow must be at least as high as the "flood level" (the peak possible drain water level in the sink), allowing it to serve as a de facto vacuum breaker preventing the loop from becoming a siphon for an overfilled sink, as from a clogged drain (rather than vent) line.

  8. History of water supply and sanitation - Wikipedia

    en.wikipedia.org/wiki/History_of_water_supply...

    The bathroom-toilet structure of the ruler's house, on Lothal's acropolis c.2350 BC. Bathing platform and communal drain, Lothal's acropolis, c.2350 BC. Well, and drain, Lothal's acropolis, c.2350 BC. The Indus Valley civilization in Asia shows early evidence of public water supply and sanitation. The system the Indus developed and managed ...

  9. Aqueduct of the Gier - Wikipedia

    en.wikipedia.org/wiki/Aqueduct_of_the_Gier

    Four inverted siphon tunnels cross the particularly deep and wide river valleys of the Durèze, the Garon, [4] the Yzeron and the Trion on pipe bridges raised on high arches. In these, water filled a sunken tank tower (castellum [5]) on the brim of a slope. The tank effected a transition between open channel flow and a lead pipeline.

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