A pump draws a solution of specific gravity 1.5 from a storage tank through 70 mm pipe. Velocity in the suction line is 1 m/s. The pump discharges through a 50 mm pipe to an overhead tank. The efficiency of the pump is 60%. The end of the discharge pipe is 15 m above the level of solution in the feed tank. Friction losses in the entire piping system is 28 J/kg. What pressure must the pump develop?