This run time calculator utilizes weather data from the previous 24 hour period in Castle Rock to help determine the amount of irrigation needed. 

Please answer a few easy questions that are specific to your property. Calculations will differ with varied weather conditions, different types of sprinklers and how long between irrigation periods. This calculation is an estimate only. Additional factors could affect your irrigation times including sun exposure, slope and soil conditions among others. Monitor your irrigation system, plant health and landscape to see if you need to adjust your irrigation timing.

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