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Before crashing, an onboard ion pump sent a brief message signaling that the pump was working harder than scientists expected. One of several explanations for the pump not working properly was the presence of an unknown amount of argon gas in the Martian atmosphere, which could have been very hard to pump out of the device, potentially ...
In this configuration pumps are installed below ground level on the base of the dry well so that their inlets are below water level on pump start, priming the pump and also maximising the available NPSH. Although nominally isolated from the sewage in the wet well, dry wells are underground, confined spaces and require appropriate precautions ...
This avoids one of the principal challenges faced by the larger, two-part pumps: maintaining a water-tight seal at the point where the pump drive shaft enters the pump body. Small- to medium-sized circulator pumps are usually supported entirely by the pipe flanges that join them to the rest of the hydronic plumbing. Large pumps are usually pad ...
31% of the improved rural water points are not functioning (2008). [62] 22% of 24,769 handpumps were found to be non-functional in 2007 [11] 49% of all gravity flow system taps were not working (2007). [63] In 1997, a survey of almost 900 tap stands found that more than 50% of them were not supplying water.
This pump and possibly many more around the plant returns this hot water back to a make-up tank closer to the boiler, where it can be reclaimed, chemically treated, and reused, in the boiler, consequently it can sometimes be referred to as a condensate return pump.
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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").