A three-loop water-distribution system is depicted in Figure P4.4.7. The demands on the system are currently at junctions C(6.00 cfs), D (8.00 cfs) and E (11.0 cfs). Water enters the system at junction A from a storage tank with a pressure of 45 psi. Using the pipe network data in the table below, calculate the flow rate in each pipe (initial estimated flows are provided). Also determine the water pressure at each junction (30 psi is required by the customers). Pipe network analysis software would be useful.

Figure P4.4.7

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Pipe Flow (ft isec) Length (f) Diameter(f Junction Elev. (ft) 1.50 1.50 120 120 600 AB AC BD 11.00 14.00 600 800 400 400 328.5 325.8 338.8 330.8 332.7 334.8 1.25 1.00 1.00 120 120 120 120 120 4.00 BF FG GE 5.00 1.00 1.00