A 2,500-ft long pipeline is required to carry 21.5 cfs (ft3/sec) of water to an industrial client. The limiting pressure drop mandated by the client is 40 psi (lb/in.2). Determine the pipe size required if the material available is polyvinyl chloride (PVC) and the pipeline is level (horizontal). Assume that minor losses are negligible and the water temperature is 68°F. (assume f = 0.001 and e = 0.000005 ft)