List of hospitals in Illinois. This is a list of hospitals in the U.S. state of Illinois, sorted by name: This list is incomplete; you can help by expanding it.
Run your sprinkler and see how long it takes to get a half inch of water in the can â just like a rain gauge. Usually itâs about 30 minutes. So 20 minutes, 3 times per week will get an inch of water on your lawn, and 30 minutes 3 times per week will get 1 Â½â down. Bear in mind that during extreme heat, you will need to water more, due to evaporation and heat stress on the grass. Water deeply 2-3 times per week, rather than daily.
Turn on the sprinklers for 20 minutes and use a ruler to measure (in inches) the depth of water in. each can. Now determine the average depth in all of the cans. Multiply the average depth by 3 to. determine how many inches of water your sprinkler system applies per hour. Step 3. Determine how many minutes you need to water your lawn each week. Scientific. research has accumulated data on how to water cool and warm season grasses.