Hand pump (EMAS)
A low-cost hand pump developed by EMAS and also known as OPS-FLEXI pumps has been adapted by WECF to the situations in EECCA countries. These are manual pumps which are easy built with locally available material (potentially, recycled material). The pump can pump water vertically from groundwater wells as well as surface water over a distance horizontally. The pumps can also be applied to pump human urine from urine storage tanks to use it as fertilizer on the fields. The liquid to be pumped should not contain any solids.
The POPS-FlEXI pump can be made of PP and PE pipes. The pressure or the water volume can be determined varying the diameter of the cylinder (using pipes of a larger or smallerdiameter).
EMAS pumps can have an outlet pressure that allows pumping up to 60 meters height, or 2 Km horizontally. The flow varies between 0.2 and 1 liter per pumping, depending on the pattern. The pump can also be used for pumping urine out of the underground urine tank of UD toilets.
