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.
1 The best measure for determining how often to water your lawn is to check the lawn itself. If footprints or lawn mower tracks remain indented in the grass for longer than 30 minutes after passing through the yard, it may be a sign that your grass is getting dry.  Check the color of your lawn.