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A new computer program can assist engineers, water utility managers, and pump station operators in selecting the most cost‐effective combination of pumps to meet a specific system requirement over a given time period. The program provides operators with two options: (1) finding the least‐cost pump combination that will place tank levels at desired elevations at the end of a specified time period, and (2) finding the most efficient pump combination that will supply a required pump demand over a specified time period. It is expected that such a tool will not only improve the overall operation of a system but will also allow insight into system performance.