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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />water managers, most of whom are homeowners who have little or no experience in <br />operating or managing irrigation systems. <br /> <br />The pump station and distribution system must be sized to accommodate the peak flow. <br />Hydraulic network analysis software is very useful in analyzing pipe sizing for secondary <br />systems. Typically, the distribution pipe is sized to keep velocities below 5 feet per <br />second (fps). In many instances secondary water systems are installed in phases and <br />some upsizing of pipe may be required to accommodate future project phasing. <br /> <br />The irrigation pump stations must be designed to provide consistent pressure over a <br />wide variation in flow. Pump stations with variable frequency drives (also know as VFD <br />pumps) are typically utilized because of the operational flexibility that VFD stations <br />afford. <br /> <br />Aqua Engineering, Inc. <br />November 8, 2004 <br /> <br />Canal Modernization Feasibility Study <br />- 5 - <br /> <br />