An irrigation system for an Atlanta yard should zone lawn and beds separately, use drip in planting beds, and run short cycles so clay soil can absorb water. Georgia generally limits outdoor watering to cooler morning and evening hours, with some exceptions. Smart controllers and rain sensors help avoid wasted water.
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A well-designed irrigation system keeps lawns and beds healthy while using less water than hand watering or a hose-end sprinkler. A poorly designed or neglected one wastes water, drowns some plants while starving others, and can run afoul of Georgia's outdoor watering rules.
Georgia's outdoor watering rules
Under the Georgia Water Stewardship Act of 2010, outdoor landscape watering is generally limited to the cooler hours of the day, roughly before mid-morning and after late afternoon, to reduce evaporation. There are exceptions, including for drip irrigation, hand watering with a shut-off nozzle, and new landscapes during an establishment period. Drought declarations can add further restrictions, and local water providers may have their own rules. Check the current requirements with the Georgia Environmental Protection Division and your water utility, and set your controller to match.
Types of systems
- Spray heads: for smaller lawn areas and tight spaces.
- Rotors: for larger lawns, with a slower application rate that suits clay soil.
- Drip irrigation: delivers water directly to plant roots in beds, with little runoff or evaporation.
- Smart controllers: adjust watering based on weather data or soil moisture. EPA's WaterSense program labels controllers that meet its efficiency criteria.
Design matters on clay
Clay soil absorbs water slowly, so long run times create runoff instead of deep watering. A good design uses separate zones for lawn and beds, and for sun and shade, and uses multiple shorter cycles (cycle and soak) so water has time to sink in. Matched-precipitation heads and good coverage prevent dry spots and wet spots.
Backflow prevention
Irrigation systems connected to a public water supply need a backflow prevention device to keep lawn water and fertilizer from being drawn back into drinking water lines. Requirements for installation and testing vary by water provider, so ask your installer what your utility requires.
Maintenance and common repairs
- Broken or tilted heads from mowers and foot traffic
- Clogged nozzles and drip emitters
- Leaking valves or lines, often noticed as a soggy spot or a higher water bill
- Controllers still set to summer schedules in fall and winter
- Rain or soil-moisture sensors that have failed or were never installed
Before Atlanta's occasional hard freezes, it's wise to protect or drain exposed backflow assemblies and piping. Ask your irrigation company how they handle winterization.
Questions to ask
- How will you zone the system, and will beds use drip?
- Does the quote include a smart controller and rain sensor?
- Who handles any permits and backflow testing?
- What warranty covers parts and labor?
Need a new system or a repair? Request an irrigation company.
Frequently asked questions
What hours can I water my lawn in Georgia?
Under the Georgia Water Stewardship Act, landscape watering is generally limited to early morning and evening hours, with exceptions such as drip irrigation, hand watering and new landscapes. Rules can tighten during drought, so check with the Georgia EPD and your water provider.
Is a smart irrigation controller worth it?
For many homes, yes. Controllers that adjust to weather or soil moisture can reduce overwatering. EPA's WaterSense program labels controllers that meet its efficiency criteria.
Do I need a backflow preventer on my sprinkler system?
Systems connected to a public water supply generally need one to protect drinking water. Installation and testing requirements vary by water provider, so ask your installer or utility.