The 12 in diameter cast iron pipe is 2000ft long, the water surface is El 200 in the reservoir on the left B. El 175 on the right.

A. Find V and Q by hazen-williams for a new cast iron pipe (Chw=130) Neglect entrance, exit and local losses.

B. Using this computed velocity, and considering local losses, determine how much higher must reservoir B actually be to provide the same Q? Square entrance and exit. The sum of bend coefficients K=4.

C. Find the velocity at the vena contracta constriction. How much does HGL dip as water enters the pipe?

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