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2. Village-level operation and maintenance (pumps) - Wikipedia

   en.wikipedia.org/wiki/Village-level_operation...

   During the first UN decade on water boreholes, hand-dug wells and tubewells were constructed and water pumps were provided to developing countries by various NGOs. Unfortunately this top down approach led to the installation of pumps, notable the India Mark II, that were difficult to maintain. VLOM pumps were designed to allow remote villages ...

3. Water well pump - Wikipedia

   en.wikipedia.org/wiki/Water_well_pump

   These pumps, often submersible and powered by electricity, can access water reserves located much deeper than shallow wells, ensuring a consistent supply even during periods of drought. They include different kinds of pumps, most of them submersible pumps: Hand pump, manually operated; Injector, a jet-driven pump; Mechanical or rotary lobe pump ...

4. Multilevel groundwater monitoring systems - Wikipedia

   en.wikipedia.org/wiki/Multilevel_groundwater...

   Installation of wells clusters can be expensive because of increased drilling costs associated with drilling multiple borings, especially in fractured rock. Nested wells are wells constructed of two or more well screens and casing assemblies of different lengths installed in a single borehole. [1]

5. Grundfos - Wikipedia

   en.wikipedia.org/wiki/Grundfos

   In the water-supply and wastewater sector, Grundfos offers pumps for irrigation, green houses and for municipal, private and industrial water supply as well as for sewage applications. In the fire systems sector, the products are compliant with the popular standards of: FM, NFPA20, LPCB, VdS, EN12845 for fire sprinkler systems , among many ...

6. Hand pump - Wikipedia

   en.wikipedia.org/wiki/Hand_pump

   The installation, maintenance and repair of deep well hand pumps is more complicated than with other hand pumps. A deep well hand pump theoretically has no limit to which it can extract water. In practice, the depth is limited by the physical power a human being can exert in lifting the column of water, which is around 30 m

7. Water pumping - Wikipedia

   en.wikipedia.org/wiki/Water_pumping

   Due to the rotation, water is then picked up by the tube and pumped upwards in the hose. The coil pump, as many low lift pumps, is commonly used for irrigation purposes and for drainage of lands. It is currently still used by farmers in Asia. [1] The coil pump was built as an alternative to the Archimedean screw. Unlike the Archimedean screw ...