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Irrigation System Required Total Flow Rate

Use this form to calculate the system capacity (flow rate) required to meet the demands of a field.

System Pumping Requirements Calculator

Net Application Required Per Week:
Total Area:
Total Hours Available to Operate per Day:
hrs
Total Days Available to Operate per Week:
days per week
Irrigation Efficiency:
%
Total Flow Required to Operate System:

The Equation

This calculator uses this formula to determine the system pumping requirements of a field.


Where:

= Total flow rate required to operate irrigation system (gpm)

= The net application required per week (in)

= Total area to be irrigated (acres)

= Total hours available to operate per day (hrs)

= Total days available to operate each week (days)

= Efficiency of the irrigation system (as a deciaml)

Reference: Washington State University

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