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A sump is a low space that collects any often-undesirable liquids such as water or chemicals. A sump can also be an infiltration basin used to manage surface runoff water and recharge underground aquifers.[1]

One common example of a sump is the lowest point in a basement, into which water that seeps in from outside the house flows. If this is a regular problem, a sump pump that moves the water outside of the house may be used.

AutomotiveEdit

Another example is the oil pan of an engine. The oil is used to lubricate the engine's moving parts and it pools in a reservoir, known as a sump, at the bottom of the engine. Use of a sump requires the engine to be mounted slightly higher to make space for it. Often though, oil in the sump can surge during hard cornering starving the oil pump. For these reasons racing and piston aircraft engines are "dry sumped" using scavenge pumps and a swirl tank to separate oil from air which is also sucked up by the pumps. [2]


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