what is the working mechanism of hand pump
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On the up stroke of the piston the foot valve opens and suction brings water into the pump head. On the following down stroke of the piston the valve on the piston opens up and allows water to flow above the piston. On the successive up stroke of the piston water is pushed out of the outlet.
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On the upstroke of the piston, the foot valve opens and suction brings water into the pump head. On the following downstroke of the piston, the valve on the piston opens up and allows water to flow above the piston. On the successive upstroke of the piston, water is pushed out of the outlet.
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