Calculating Sprinker Delivery

Sprinklers are used to deliver supplemental water to turf sites. An important aspect of any irrigation system whether you use a simple lawn sprinkler to the more complex irrigation systems used on sports fields and golf courses, knowing the amount of water delivered by a sprinkler is important in deciding how much to water.

One method of determining the amount of water delivered and also the uniformity of delivery is to measure the amount of water captured in open containers or cans within the sprinkler distribution pattern. Given that recommendations given in articles is in English units, I have provided a conversion table below. The table should help you determine how much water is being applied during a given time.

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Read ml in canequals inches in can Read ml in canequals inches in can Read ml in canequals inches in can
250.09 1450.54 2650.98
300.11 1500.55 2701.00
350.13 1550.57 2751.02
400.15 1600.59 2801.03
450.17 1650.61 2851.05
500.18 1700.63 2901.07
550.20 1750.65 2951.09
600.22 1800.66 3001.11
650.24 1850.68
700.26 1900.70
750.28 1950.72
800.29 2000.74
850.31 2050.76
900.33 2100.78
950.35 2150.79
1000.37 2200.81
1050.39 2250.83
1100.41 2300.85
1150.42 2350.87
1200.44 2400.89
1250.46 2450.91
1300.48 2500.92
1350.50 2550.94
1400.52 2600.96

If you run sprinklers for 10 minutes : multiply by "6" for inches per hour
If you run sprinklers for 15 minutes : multiply by "4" for inches per hour
If you run sprinklers for 20 minutes : multiply by "3" for inches per hour
If you run sprinklers for 30 minutes : multipy by "2" for inches per hour

source: Dr. David Kopec, University of Arizona

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