Ram Pump.m4v

!±8± Ram Pump.m4v

Mr Malala starts the ram pump built by Tshulu trust. It pumps using a head of two metres from a river diversion that flows down the large black pipes on the rhs. When the water attains sufficient velocity it closes the outlet valve and this causes a pressure surge that opens the delivery valve and pumps 10% of the water up the delivery pipe. The pressure drops and the cycle begins again.

Ram Pump.m4v

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