Use the basic instructions printed inside the controller door to input your programming information. Change the watering frequencies as plants become established and as the seasons change. However, for efficient watering, you can’t just set it and forget it. Record your numbers on the can test worksheet, then turn this page to calculate your sprinkler number.Ī good irrigation controller that is properly programmed can keep your plants healthy and save a lot of water. When the sprinklers turn off, measure the depth of water in each can. Spread the cans around your lawn 4 to 5 feet apart, then turn on each valve or station of your sprinklers for 15 minutes. This is a great activity for kids!Ĭollect 6 to 8 shallow, flat bottomed cans like tuns or cat food cans. Here’s a simple and fun method to measure your sprinkler output. However, if you see big differences (greater than 0.2″), you may need to modify or adjust the sprinkler system to get more uniform and efficient coverage. You will typically see some variation in sprinkler output across your lawn. On average, pop up sprinklers apply 0.4 inches of water in 15 minutes, and impact sprinklers apply 0.2 inches of water in 15 minutes. Sprinkler output can vary depending on your system design and water pressure. Now that you know how much water your lawn needs, you need to find out how much water your sprinkler system applies. How Much Water Does your Sprinkler Apply?
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