Tips for Watering Wisely

Inspect. Check your system for clogged, broken or missing sprinkler heads.
Better yet, go with a pro—find an irrigation professional certified by a WaterSense labeled program to do the work for you.

Connect. Examine points where the sprinkler heads connect to pipes or hoses. If water pools in your landscape or you have large wet areas, you could have a leak in your system. A leak about as small as the tip of a ballpoint pen (or 1/32nd of an inch) can waste about 6,300 gallons of water per month!

Direct. Are you watering the driveway, house, or sidewalk instead of your yard? Redirect sprinklers to apply water only to the landscape.

Select. An improperly scheduled irrigation controller can waste water and money. Update your system’s watering schedule to align with the seasons, or select a WaterSense labeled weather based irrigation controller to take the guesswork out of scheduling.

When? Avoid watering in the middle of the day when the hot sun will evaporate much of the water before it can get to thirsty plants.

How often?
The answer depends on several factors, including where you live, recent weather conditions, and the type of plants in your landscape. A rule of thumb for many areas of the country is that lawns only need up to one inch of water a week, including rainfall. Shrubs, trees, and other perennials generally will need even less because of their deeper root structure. Check with your area's Cooperative Extension Service or local water utility for expert advice on watering needs in your area.

How long?
If water begins to pool, turn off your sprinkler to prevent overwatering and runoff. Watering plants, including turfgrass, too much or too frequently can drown plants or result in shallow roots. Overwatering can lead to a host of other problems including weed growth, disease, fungus, and stormwater runoff that pollutes local waterways with fertilizers and pesticides. Remember, most of your plants will need less water than your turfgrass.

What else?
When the rain does come, saving water from storms is a great way to supplement your efficiency measures. Rain barrels or cisterns can be used to harvest rain water for irrigation and other outdoor water uses. Check with your local water utility for possible product rebates.

Adjust your irrigation system often. Get to know the settings on your irrigation controller and, if you haven't upgraded to a weather-based controller, adjust its watering schedule regularly to conform to seasonal weather conditions. A good rule of thumb—when you adjust your thermostat due to seasonal temperature changes, adjust your irrigation controller watering schedule as well.

Set sprinklers to keep the water on the landscape and off the pavement.
Lots of water is wasted by poorly designed and neglected sprinkler systems that spray sidewalks, driveways, and the street. Monitoring and making simple adjustments to the sprinklers saves water and reduces runoff from the landscape, helping to keep local water bodies clean.

Play "zone" defense.
Schedule each individual zone in your irrigation system to account for the type of sprinkler; sun or shade exposure; and type of plants and soil in the specific area. The same watering schedule rarely applies to all zones in the system.

Check for WaterSense!
A certified irrigation professional can design, install, maintain, or audit your system to ensure you're using the proper amount of water to support a healthy landscape. Ask if your irrigation contractor is certified by a WaterSense labeled program, a mark of distinction that means he or she has been certified by a program that focuses on water efficiency.

Inspect your irrigation system monthly.
Check for leaks, broken or clogged heads, and other problems, or engage a certified irrigation professional to regularly check your system. Clean micro-irrigation filters as needed and correct obstructions in sprinkler heads that prevent them from distributing water evenly.

Use smart(er) technologies.
Consider installing other water-saving technologies such as soil moisture sensors, efficient sprinkler heads, and micro or drip irrigation to get the most out of your irrigation system.

Install low-volume micro-irrigation for gardens, trees, and shrubs.
Micro-irrigation includes drip (also known as trickle), micro-spray jets, micro-sprinklers, or bubbler irrigation. Micro-irrigation devices irrigate slowly and minimize evaporation, runoff, and overspray.