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Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surface water (e.g., irrigation, drainage of lands, ...), while high-lift pumps allow deep water pumping (e.g., potable water pumping ...
A pump-jet, hydrojet, or water jet is a marine system that produces a jet of water for propulsion. ... This image illustrates the workings of a reversing bucket. 1: ...
A spiral pump, sometimes called a Wirz pump or incorrectly Wirtz pump, is a low lift pump which is composed of a long piece of metal plating, which is wound into a coil and sealed at the top and back extremities so as to resemble a cylinder. The outer cavity serves as the inlet, while the inner (partial) tube serves as the outlet.
The bucket and rope system is not compatible with the use of a cover slab, which can prevent pollution of groundwater. In addition, unwashed hands can contaminate the bucket and rope. Hand pumps avoid these issues and are therefore preferable. [1] However, villagers did not stop using traditional means of gathering water during this project.
Philo of Byzantium wrote of such a device in the 2nd century B.C.; [30] the historian Vitruvius mentioned them around 30 B.C.; remains of tread wheel driven, bucket chains, dating from the 2nd century B.C., have been found in baths at Pompeii, [31] and Costa, Italy; fragments of the buckets and a lead pipe, from a crank handle operated, chain ...
This allows the water to be immediately distributed rather than manually emptied. The short end carries a weight made of clay, stone, or a similar material, which serves as the counterpoise of a lever. The bucket can be lowered by the operator using their own weight to push it down; the counterweight then raises the full bucket without effort ...
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