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  2. Culvert - Wikipedia

    en.wikipedia.org/wiki/Culvert

    A culvert may also be a bridge-like structure designed to allow vehicle or pedestrian traffic to cross over the waterway while allowing adequate passage for the water. Dry culverts are used to channel a fire hose beneath a noise barrier for the ease of firefighting along a highway without the need or danger of placing hydrants along the roadway ...

  3. Plumbing fixture - Wikipedia

    en.wikipedia.org/wiki/Plumbing_fixture

    The visible water surface in a toilet is the top of the trap's water seal. Each fixture drain, with exceptions, must be vented so that negative air pressure in the drain cannot siphon the trap dry, to prevent positive air pressure in the sewer from forcing gases past the water seal, and to prevent explosive sewer gas buildup.

  4. Outdoor water-use restriction - Wikipedia

    en.wikipedia.org/wiki/Outdoor_water-use_restriction

    An outdoor water-use restriction is a ban or other lesser restrictions put into effect that restricts the outdoor use of water supplies. Often called a watering ban or hosepipe ban, [1] it can affect: irrigation of lawns; car washing; recreational uses such as filling swimming pools and using water slides

  5. Drain-waste-vent system - Wikipedia

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

    A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.

  6. Sanitary sewer - Wikipedia

    en.wikipedia.org/wiki/Sanitary_sewer

    Sanitary sewer overflow can occur due to blocked or broken sewer lines, infiltration of excessive stormwater or malfunction of pumps. In these cases untreated sewage is discharged from a sanitary sewer into the environment prior to reaching sewage treatment facilities. To avoid such overflows, maintenance is required.

  7. Backflow prevention device - Wikipedia

    en.wikipedia.org/wiki/Backflow_prevention_device

    Backflow prevention device. The simplest, most reliable way to provide backflow prevention is to provide an air gap.An air gap is simply an open vertical space between any device that connects to a plumbing system (like a valve or faucet) and any place where contaminated water can collect or pool.

  8. 'We've lost the aqueduct': How severe flooding threatens a ...

    www.aol.com/news/weve-lost-aqueduct-severe...

    The Los Angeles Department of Water and Power is struggling to maintain the city's Eastern Sierra aqueduct amid continued flooding from snowmelt. 'We've lost the aqueduct': How severe flooding ...

  9. Plumber's snake - Wikipedia

    en.wikipedia.org/wiki/Plumber's_snake

    A man clears a sanitary sewer pipe with a motorized snake. Plant roots and other material being removed from a drain. A plumber's snake or drain snake or drain auger is a slender, flexible auger used to dislodge clogs in plumbing.