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Handpumps

3 bytes removed, 07:25, 12 April 2012
Maintenance
'''Potential problems'''
* Worn washers, plungers and foot valve parts; * Abrasion of the seal on the PVC cylinder and between the pump rod and rising main; * Broken or damaged handles; * The maximum lift is limited to about 12 m; .
* The force needed to pump the water may be too great for children, especially if the water table is below 5 m.
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