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1 Trout, T.; Kemper, W. D.; Aust, R.. 1980. Development and design of watercourse junction jet pumps. Fort Collins, CO, USA: Colorado State University. xv, 113p. (Water management technical report no.64)
(Location: IWMI-HQ Call no: 631.7.1 G730 TRO Record No: H0343)
Many farmers in Pakistan experience difficulties due to insufficient head or elevation of the water in their irrigation system. This problem is especially acute on public tubewell supplemented watercourses. A low head jet pump device which utilizes the excess energy of tubewell water to raise the elevation of surface canal water was developed to help solve this problem. Both laboratory and field studies are described which show that these watercourse junction jet pumps can solve the problem, even though their efficiencies range from only 14 and 18%, and can be built inexpensively. Their primary use will be to: (a) allow canal turnouts, which are often submerged when the tubewell is turned on, to flow freely; or (b) irrigate, or more efficiently irrigate, the higher elevation croplands. Both graphical and analytical procedures are described for the design of jet junctions.
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