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Handpumps

6 bytes added, 02:17, 2 November 2012
→‎Diaphragm pumps
The disadvantages are that diaphragm pumps need high-quality rubber diaphragms, which are costly to buy and replace, and they have a relatively low efficiency because of the energy needed to expand the diaphragm on every stroke. In addition, the working principle is relatively complex so mechanics and caretakers need to complete comprehensive training programmes.
'''Example of a diaphragm pump: ''' [[Vergnet Hydro]]
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