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Rope pump

149 bytes removed, 10:20, 5 May 2009
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A Rope Pump consist of a PVC pipe with a rope though it, to which washers are attached which fit in the tube with a small clearance. A wheel above ground pulls the rope with the washers through the pipe. The water is held between the washers in the pipe, and is pulled to the surface. Rope pumps are very simple, and can be easily repaired. They are used for domestic water supply, irrigation and cattle watering. For wells down to 35 m, rope pumps are often five times cheaper and more sustainable than piston pumps.
 
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- The rope pump is easy to copy, but experiences indicate "Simple is not easy": If not made wellbad copying (materials, the pump breaks construction) leads to early break down to much and can not be easily repaired.<br>- Some introductions have failed because of lack of training Lack of users in maintenance and production and installation errors, so the pump parts wear can lead to early wearing out too fast, or parts break.<br>- With different depths, different sizes breakage of pump pipes are needed, otherwise the pumping becomes to heavy. See manuals on websites of [http://www.practicafoundation.nl/library/manuals/ Practica Foundation] and [http://www.connectinternational.nl/english/smartmodules/smart-tec/pumps/ropepumpproduction Connect International].parts<br>- The pump needs a A “blocking system” is needed on the handle to avoid return of the handle, which can be dangerous for children.<br>
- Compared to piston pumps the rope pumps splashes more.<br>
- Similar to Piston pumps, a cement slab and a good soak away are needed to avoid splash water becoming a cause for pollution.<br>
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==Technical specification==
With different depths, different sizes of pump pipes are needed, otherwise the pumping becomes to heavy. See manuals on websites
of [http://www.practicafoundation.nl/library/manuals/ Practica Foundation] and [http://www.connectinternational.nl/english/smartmodules/smart-tec/pumps/ropepumpproduction Connect International].<br>
 
Similar to piston pumps, a cement slab and a good soak away are needed to avoid splash water becoming a cause for pollution
====Operation====
 
====Maintenance====
Evaluations show that rope pumps on communal wells are being maintained by the users, if introduced properly. 90% of rope pumps remain operational, even after many years.
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