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Grupa, J.

Besselink, J., Grupa, J. & Smulders, P., 1990. Behaviour of deepwell handpumps with PVC rising mains, (IAD Handpump Project research publication) Arnhem, The Netherlands: InterAction Design. Available at: https://es.ircwash.org/sites/default/files/232.2-7699.pdf.

Fecha publicación: 01/01/1970

When handpumps with PVC rising mains are used at greater depths, fracturing of the rising mains and the pump rods occur and pump yields decrease...

Grupa, J., 1989. The dynamical behaviour of man driven piston lift pumps : semesterial report : period 01-10-1988 till 31-01-1989, Eindhoven, The Netherlands: Eindhoven University of Technology. Available at: https://es.ircwash.org/sites/default/files/232.2-89DY-6457.pdf.

Fecha publicación: 29/12/2004

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