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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>
Many different types of rope pump exist, powered by hand, bicycle, wind, horse, etc.
Similar to piston pumps, a cement slab and a good soak away are needed to avoid splash water becoming a cause for pollution.
===== Motorized rope pumps =====
Most common diesel and petrol pumps are suction pumps that can pump from shallow wells down to 7 m. deep. Pumping from deeper wells requires generator pump sets or long-shaft diesel pumps costing US$ 800 or more. Where there is electricity, submersible pumps can be used but many small farmers do not have electricity.
Motorised rope pumps can pump from deep wells, up to 60m. This model combines a rope pump with an electric motor or petrol engine. Pump parts and other elements of the structure can be produced in local workshops, the engines are often imported.
If combined with a locally available small petrol engine the cost of a motorised deep-well pump can be US$ 450. This is far cheaper then long-shaft diesel pumps or submersible pumps and this cost can even be less when Chinese engines are used.
Similar to hand rope pumps, the pump part can be maintained and repaired by the users. The motorised rope pump is being tested in Columbia and Nicaragua.
====Operation====