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  2. Sump pump - Wikipedia

    en.wikipedia.org/wiki/Sump_pump

    Sump pumps are used where basement flooding may otherwise happen, and to solve dampness where the water table is near or above the foundation of a structure. Sump pumps send water away from a location to any place where it is no longer problematic, such as a municipal storm drain, a dry well, or simply an open-air site downhill from the building (sometimes called "pumping to daylight").

  3. Plumbing - Wikipedia

    en.wikipedia.org/wiki/Plumbing

    Present-day water-supply systems use a network of high-pressure pumps, and pipes in buildings are now made of copper, [34] brass, plastic (particularly cross-linked polyethylene called PEX, which is estimated to be used in 60% of single-family homes [35]), or other nontoxic material.

  4. General Motors LS-based small-block engine - Wikipedia

    en.wikipedia.org/wiki/General_Motors_LS-based...

    Based on the LS7 engine, the LS427 replaces the dry-sump oiling system with a wet-sump system and includes a higher-lift camshaft. This engine was only available as a crate option and did not appear in any production vehicles. It was introduced in June 2020 and discontinued in January 2022 along with the LS7.

  5. Elevator - Wikipedia

    en.wikipedia.org/wiki/Elevator

    Drainage system works by creating a sump to collect the condensed water and using a pump to dispose of it through a drainage system. It is an efficient method, but it comes at a heavy price because of the cost of building the sump. Moreover, maintaining the pump to make sure it operates is very expensive.

  6. Rotary-screw compressor - Wikipedia

    en.wikipedia.org/wiki/Rotary-screw_compressor

    Principal view of the pumping action of a twin-screw pump with a six-lobe female screw and a five-lobe male screw. A compressor (as opposed to a pump) would be shaped the same way, except that the shape of the lobes would change along the length of the screw, so that the volume of the trapped pockets would get squeezed smaller as they get closer to the exhaust port.

  7. Heating, ventilation, and air conditioning - Wikipedia

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

    Electrical heaters are often used as backup or supplemental heat for heat pump systems. The heat pump gained popularity in the 1950s in Japan and the United States. [14] Heat pumps can extract heat from various sources, such as environmental air, exhaust air from a building, or from the ground. Heat pumps transfer heat from outside the ...

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