Question

An engineer designs an NRCP (non-reinforced concrete pipe) gravity sewer to convey a peak flow rate of 3,600 gpm and proposes a slope of 0.04% based on existing topography. Show all work to answer the following: a) Specify an appropriate pipe diameter assuming NRCP is available in 3-in sizes b) Explain why proposed design slope is or is not acceptable c) Briefly explain what can cause pump cavitation and why it is an undesirable operating condition

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