John Deere Irrigation System - Manual (Page 3)

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The secret to Aurora’s water conservation: To-the-second programming. In the
example below, a conventional to-the-minute system must run for two minutes
to ensure head rotates 180°, where the Aurora system can run exactly the
time needed, 1:30—saving a full 30 seconds of water per head per application.
If the system in the above example runs 200 times in a year, it adds up to
2 million gallons saved.
Conventional Aurora
180° rotation time (per head) 1:30 minutes 1:30 minutes
Flow (per head) 25 GPM 25 GPM
Controller setting 2:00 minutes 1:30 minutes
Water used per head 50 gallons 37.5 gallons
Water used multiplied by 800 heads 40,000 gallons 30,000 gallons
Aurora savings per application 10,000 gallons
Extraordinary water savings
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