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Binaya gravatar image

Is it always necessary to have a long pipe (100ft) to lift water using hydraulic ram pump?

If the stream used as the water source has ample water volume and swift flow, can we use a shorter source pipe with a large diameter, say 6 inches x 10 foot long, reduced down to 2 inches leading into the pump to provide the drive water. Why is it necessary to have a long (100 ft. pipe) in Hydraulic Ram Pump?