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Rope pump

161 bytes removed, 12:49, 29 April 2009
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[[Image:RopePumpBicycle.jpg|thumb|right|150px|[[Rope pump| Rope pump]], bicycle model, produced and used in Nicaragua]]
{| border="1" cellpadding="5" cellspacing="0" align="center"|-! width="50%" style="background:#efefef;" | Advantages! style="background:#ffdead;" | Disadvantages|-| valign="top" |
<ul>
<li>Significantly cheaper (up to 5 times) than piston pumps.</li><li>If made well, one pump can supply up to 250 people as experiences in Nicaragua, Ghana and other countries indicate. However, suggested use is for maximum of 20 families (100 people)</li><li>Easy to maintain.</li><li>Easy to train on maintenance.</li><li>Can be made locally by workshop.</li><li>Ideal to be used by one or two families in a shallow well on their own yard.</li><li>Can be used for irrigation.</li><li>Can be driven by hand, windmill, motor, bicycle, animals.</li></ul>| valign="top" |<ul><li>The rope pump is "too simple", therefore it is easy to copy, but experiences indicate "Simple is not easy": If not made well, the pump breaks down to much and can not be easily repaired.</li><li>Many Introductions have failed because of lack of training of users in maintenance and production and installation errors,so the pump parts wear out too fast, or parts break.</li><li>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].</li><li>The pump needs a “blocking system” on the handle to avoid return of the handle, which can be dangerous for children.</li><li>Compared to piston pumps the rope pumps splashes more. </li><li>Similar to Piston pumps, a cement slab and a good soak away are needed to avoid splash water becoming a cause for pollution.</li>
|}
 
{{procontable | pro=
- Significantly cheaper (up to 5 times) than piston pumps. <br>
- If made well, one pump can supply up to 250 people as experiences in Nicaragua, Ghana and other countries indicate. However, suggested use is for maximum of 20 families (100 people) <br>
- Easy to maintain. <br>
- Easy to train on maintenance. <br>
- Can be made locally by workshop. <br>
- Ideal to be used by one or two families in a shallow well on their own yard. <br>
- Can be used for irrigation and income generation. <br>
- Can be driven by hand, windmill, motor, bicycle, animals. <br>
 
| con=
- The rope pump is easy to copy, but experiences indicate "Simple is not easy": If not made well, the pump breaks down to much and can not be easily repaired.<br>
- Some introductions have failed because of lack of training of users in maintenance and production and installation errors, so the pump parts wear out too fast, or parts break.<br>
- 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>
- The pump needs a “blocking system” 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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Akvopedia-spade, administrator
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