Figure shows three reservoirs connected by circular pipes. The pipes, which are made of asphalt-dipped cast iron (? = 0.0012 m), have the following characteristics:

If the water surface elevations in Reservoirs A and C are 200 and 172.5 m, respectively, determine the elevation in Reservoir B and the flows in pipes 1 and 3. Note that the kinematic viscosity of water is 1 x 10^?6 m²/s and use the Colebrook equation to determine the friction factor (recall Prob. 8.12).

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3 Pipe Lengih, m Diameler, m Flow, m/s 500 0.25 1400 1800 0.4 0.2 0.1