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  2. Stormwater detention vault - Wikipedia

    en.wikipedia.org/wiki/Stormwater_detention_vault

    Tunnels may be cheaper than basins, as they do not require pumps to move the water. [6] The outlet is generally a restricted-flow drain from the detention vessel, with a weir for containing detritus. [3] Detention vessels delay water's delivery downstream, and possibly creates a later water level peak post-rainfall.

  3. 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.

  4. Slot drain - Wikipedia

    en.wikipedia.org/wiki/Slot_drain

    Slot drain can be cleaned by moving along a cleaning paddle to move the sediment into a catch basin. Heavy Load Class. If the grates are not suitable for heavy loads, [3] the drains could quickly deteriorate, accidents could happen when traveling across the area with a forklift, vehicle, pallet truck, cart or pedestrians. The grates increase ...

  5. Piping and plumbing fitting - Wikipedia

    en.wikipedia.org/wiki/Piping_and_plumbing_fitting

    Underground piping systems for landscaping drainage or the disposal of stormwater or groundwater also use low-pressure gravity flow, so fittings for these systems resemble larger-scale DWV fittings. With high peak-flow volumes, the design and construction of these systems may resemble those of storm sewers .

  6. Floor drain - Wikipedia

    en.wikipedia.org/wiki/Floor_drain

    Floor drain system in bathroom, Korea. A floor drain is a plumbing fixture that is installed in the floor of a structure, mainly designed to remove any standing water near it. They are usually round, but can also be square or rectangular. They usually range from 2 to 12 inches (5.1 to 30.5 cm); most are 4 inches (10 cm) in diameter.

  7. Leader head - Wikipedia

    en.wikipedia.org/wiki/Leader_Head

    Copper Leader Head at Penn's Quadrangle, Philadelphia 1894 Copper Leader at Shofuso Japanese House and Garden in Philadelphia. The purpose of a leader head is to help transfer excess water from the roof onto downspouts, thus preventing the gutters from overflowing and water washing over the walls, which is a common occurrence in areas susceptible to heavy rain cycles.