==Suitable conditions==
One limitation of a centrifugal pump is that the suction height cannot be higher than about 7 m above the water level. To overcome this limitation, and make it possible to place the pump above the suction limit, some pumps inject a jet stream of water into the suction pipe inlet. The kinetic energy of the injected water is partly converted into extra pressure, which helps to lift the water above the suction limit of the pump.
==Construction, operations and maintenance==
'''Head range''': Typically, 4–50 m per stage, with multiple-stage pumps to 200 m and more.
'''Yield''': Varies widely, according to many options available in the market.
'''Area of use''': Anywhere engine power is available.
'''Trademarks''': Grundfos; Drysale; Sta-rite; and others.
==Costs==
Highly dependent on the power rating and quality of the pump.
==Field experiences==
==Reference manuals, videos, and links==
==Acknowledgements==
* Brikke, François, and Bredero, Maarten. [http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CC0QFjAB&url=http%3A%2F%2Fwww.who.int%2Fwater_sanitation_health%2Fhygiene%2Fom%2Flinkingintro.pdf&ei=cwJpT-zaO-OiiQKCst2rBw&usg=AFQjCNEWOQhTgF3a7lzhuw5OA2KmbVGxcA&sig2=Rt2EURUyGVqDcwFg6p0xAw Linking technology choice with operation and maintenance in the context of community water supply and sanitation: A reference document for planners and project staff]. World Health Organization and IRC Water and Sanitation Centre. Geneva, Switzerland 2003.