A hydraulic ram is a cyclic water pump powered by water hammer effect. The device uses to develop pressure allows apportion of input water that powers pump to lifted to appoint higher than where the water originally started. The ram is often useful. Since it requires no outside source of power other than kinetic energy of flowing water, this paper deals with adaptation of water ram pump for small-scale irrigation. This research conducted making using of ANSYS, computational fluid dynamics. Different configurations of waste vales designed checked and investigation results recorded. Investigations shows that height testes effect on drive head, delivery head, pipe cross sections, design and arrangements of waste valve, flow rate and velocity. The final optimum ram pump has designed, developed and tested at ‘Woreb’ villages around Bahir Dar for small-scale irrigation and household purpose. It observed at a river flow rate of 1L/min and head of 5 meters, hydram pumps water at a flow rate of 0.7L/min for17m head. This typical test shows rising of water up to 74% with respect to height can be achievable. Moreover, this pump can extensively be utilized in rural areas where water is flowing in gorge areas for at no expense of extra power input.