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<br />.~ <br /> <br />ATTACHMENT C <br /> <br /> <br />City of Fort Collins <br /> <br />W,.ler and Wastew.l.ter Utility <br /> <br />W A TER- WISE LA WN CARE <br /> <br />R.::v. 2/94 <br />Jim Clark <br /> <br />OVERVIEW: <br />The goal with any landscape watering should be to apply the exact minimum required of the plants to maintain <br />health, vigor, and acceptable appearance. Even an extra 1/4. applied to the average sized lot results in over 1000 <br />gaIlons of wasted water. Too much water is not only wasteful, it can be bad for plants. By providing just enough <br />water, but not too much. deeper root systems result. This translates into a much healthier landscape. <br /> <br />HOW MUCH SHOULD I WATER MY LAWN? <br /> <br />As a general guideline, bluegrass lawns require the foIl owing amounts of watering: <br />Dailv hi2h temperatures (oF) Amount to water per week (Inches) <br />70's 1 <br />80's 1-1/2 <br />90's 2 <br />In the event of rainfall, these suggested amounts sbould be reduced by tbe amount oF" the rainfall. Keep in mind <br />that most shrubs and trees require less water than bluegrass turf. <br /> <br />";.$.:'" <br /> <br />HOW LONG SHOULD I HAVE MY SPRINKLER ON? <br />Knowing the amount of water to apply is only the first step in lawn watering. The second step is translating that <br />into the length of time to operate your sprink1er. Sprink1ers vary too greatly in their discharge to be able to give <br />general guidelines. Therefore, you will need to determine that for your particular Sprink1er. It is a relatively easy <br />process. It can be as easy as placing a single straight-sided can within tbe sprink1er's coverage area. Measure the <br />amount accumulated with a ruler. <br /> <br />A more accurate method is as follows: <br />1. Obtain 3 to 6 straight-sided containers, such as cans or glasses, to catch the irrigation water. Containers which <br />are 3 to 6 inches across and at least 1 incb deep are best. <br /> <br />2. If you have a permanent, underground system, calibrate one zone at a time. Scatter the containers within the <br />coverage area, seeking to get a representative average. Repeat steps #2 through #6 for all zones. They may <br />bave different application rates. <br />OR <br />If you use a: portable sprinkler, place the containers in a straight line from the sprinkler to the edge of the <br />wetting pattern. Space the containers evenly. <br /> <br />3. Turn the water on for 15 minutes. To get accurate readings of the amount of water released. you need to turn <br />the system on at the time it is usually operated. <br /> <br />4. Use a ruler to measure the depth of water in each container. <br />Example: The measurements" of 6 containers may be: <br />1/4".1/4..1/8".1/8".1/4",112. <br /> <br />Notes: <br />a) <br /> <br />The more precise the measurement, the better your calibration will be. In most cases, measurements <br />to the nearest 1/8 inch are adequate. <br />If there is more than a 1/2 inch difference between containers on an underground system, the system <br />needs to be modified. There is no substitute for uniformity of water distribution. Consult an <br />irrigation specialist on ways to correct the problem. <br /> <br />b) <br />