The best time to water your lawn is between 4 and 6 AM. Because a wet lawn is more susceptible to disease, you should take care to limit the lawn's wet period. The wet period begins when dew first forms on the lawn and ends when the lawn is dry. Watering in the evening before dew forms extends the wet period and encourages disease. Because of rapid evaporation and wind, watering the lawn in the middle of the day is not effective.
The metro-Atlanta area is subject to watering restrictions due to drought conditions. In many areas, residential outdoor water use is prohibited, and in others, it is limited to certain times of day. However, restrictions are local and subject to change on a regular basis. Contact your local water supplier for the most recent information.
Rain sensors. Rain sensors conserve water by preventing system operation during or following a heavy rain, when the ground is saturated and needs no additional irrigation. Effective January 2005, Georgia state law requires that all new residential sprinkler systems in metro Atlanta have a rain sensor.
