Difference between revisions of "Deep well pump"
(advantages) |
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| Line 21: | Line 21: | ||
== Capacity == | == Capacity == | ||
| − | + | 25 litres / min (10 meters well). | |
== Costs == | == Costs == | ||
| − | * US$ | + | * Baptist: US$ 2 / m, incl. drilling, casing and pump. |
| + | * EMAS: US$ 6/ m, incl. drilling, casing, pump, installation tubing, storage tank in kitchen. | ||
== Applying conditions == | == Applying conditions == | ||
<ul> | <ul> | ||
| − | <li><b>Numbers:</b> | + | <li><b>Numbers:</b> 20,000 in Bolivia, hundreds in Malawia.</li> |
| − | <li><b>Range of depth:</b> | + | <li><b>Range of depth:</b> 2-90 meter.</li> |
| − | + | <li><b>Cost of introduction:</b> Baptist: US$ 1,500-2,000 2 week hand-on training in Bolivia.</li> | |
| − | <li><b>Cost of introduction:</b> US$ | ||
</ul> | </ul> | ||
Revision as of 17:19, 29 July 2007
Most direct action pumps such as the Blair pump are not fit to pump water higher than a few meters above ground level. New models such as the EMAS pump can pump up water to tanks as high as 30 m. These pumps are very popular for domestic use, as shown by 20,000 water systems in Bolivia. The pumps are made from local available PVC tubing and the valves are made with marbles. PVC pumps are used in Malawi and Brazil and many other countries in combination with water storage tanks.
Deepwell pumps
In general handpumps for rural water supply are piston pumps such as Indian MarkII, Afridef, Volanta, Nira and others. Information on these pumps can be found on the website www.rwsn.org. New developments can be seen at www.handpumps.org. and www.watsan.org.
| Advantages | Disadvantages |
|---|---|
| Suitable for domestic use. |
Capacity
25 litres / min (10 meters well).
Costs
- Baptist: US$ 2 / m, incl. drilling, casing and pump.
- EMAS: US$ 6/ m, incl. drilling, casing, pump, installation tubing, storage tank in kitchen.
Applying conditions
- Numbers: 20,000 in Bolivia, hundreds in Malawia.
- Range of depth: 2-90 meter.
- Cost of introduction: Baptist: US$ 1,500-2,000 2 week hand-on training in Bolivia.
Rope pump building manual
PRACTICA foundation and the Technical Training Programme of the ETC Foundation (TTP/ETC) have put together a really excellent manual on how to build rope pumps (PDF, 2.5 Mbyte). It is an 86 page long document with detailed instructions.
External links
- Evaluations www.irc.nl
- Africa www.pumpaid.org
- General info www.ropepump.com
- How to build www.ropepumps.org
