Sprinkler Maintenance Checklist: Keep Your Irrigation System Working Efficiently

A sprinkler system can make maintaining a healthy Louisiana lawn much easier—but only when the system itself is working properly. Broken sprinkler heads, clogged nozzles, leaks, poor coverage, and outdated watering schedules can all lead to dry areas, overwatering, wasted water, and stressed plants.

South Louisiana's combination of heat, humidity, heavy rainfall, and periods of dry weather makes proper irrigation maintenance especially important. Regularly checking your sprinkler system can help keep your lawn and landscape properly watered while preventing small problems from becoming expensive repairs.

Use this sprinkler maintenance checklist throughout the year to keep your irrigation system running efficiently.

1. Check Every Sprinkler Head

Walk around your property while the sprinkler system is running and inspect each sprinkler head.

Look for:

• Broken or cracked heads

• Heads that are tilted or pushed into the ground

• Heads that aren't popping up completely

• Water spraying irregularly

• Clogged nozzles

• Heads that are spraying sidewalks, driveways, patios, or other areas that don't need irrigation

A sprinkler head that is misaligned can waste water while leaving portions of your lawn dry. LSU AgCenter recommends checking sprinkler heads for clogs, leaks, and misalignment as part of a basic irrigation audit.

2. Look for Leaks

Leaks aren't always obvious, especially when portions of an irrigation system are underground.

Watch for:

• Constantly wet areas

• Muddy or unusually soft soil

• Standing water

• Water bubbling around sprinkler heads

• Unexpected increases in your water bill

• Areas of grass that are significantly greener than surrounding areas

Check visible pipes, valves, connections, and sprinkler heads for signs of leaking.

Even a relatively small irrigation leak can waste water over time, so repairing problems early is important.

3. Make Sure Sprinklers Are Covering the Right Areas

Your sprinkler system should provide relatively consistent coverage throughout each irrigation zone.

As the system runs, look for areas that are:

• Staying noticeably dry

• Receiving significantly more water than surrounding areas

• Being sprayed onto pavement

• Being missed by the sprinkler pattern

• Developing standing water

Poor coverage can result from clogged nozzles, damaged heads, changes to the landscape, or an irrigation system that was not designed correctly for the current landscape.

LSU AgCenter emphasizes uniform irrigation coverage as an important part of efficient landscape watering.

4. Inspect Sprinkler Nozzles

Nozzles can become clogged with dirt, debris, minerals, or other material.

A clogged nozzle may produce:

• Weak spray

• Uneven coverage

• A distorted spray pattern

• Dry spots

• Water spraying in an unintended direction

Clean or replace damaged nozzles when necessary.

If your system uses different types of nozzles, make sure replacement nozzles are appropriate for the sprinkler head and zone.

5. Check Your Watering Schedule

Your sprinkler system shouldn't necessarily run on the same schedule throughout the entire year.

Louisiana lawns have changing water requirements depending on rainfall, temperature, grass growth, and seasonal conditions.

During periods of frequent rainfall, your irrigation system may need to run less frequently. During extended periods of heat and dry weather, additional irrigation may be necessary.

Instead of relying entirely on a preset schedule, pay attention to your lawn and soil conditions.

Signs your lawn may need water include:

• Grass developing a bluish-gray appearance

• Leaf blades folding or curling

• Footprints remaining visible after walking across the lawn

• Wilting or dry-looking turf

• Soil becoming noticeably dry

6. Test Your Rain Sensor

If your irrigation system has a rain sensor, make sure it is functioning properly.

A rain sensor can prevent an automatic irrigation system from running unnecessarily after rainfall. LSU AgCenter recommends rain shutoff devices or sensors for automatic systems and notes that they can help prevent unnecessary watering.

Check that the sensor:

• Is properly positioned

• Isn't covered by debris

• Hasn't been damaged

• Is communicating with the irrigation controller

• Actually prevents irrigation when sufficient rainfall occurs

A working rain sensor can be particularly useful in South Louisiana, where heavy rainfall can occur quickly.

7. Inspect the Irrigation Controller

Your irrigation controller is essentially the brain of your sprinkler system.

Check the controller for:

• Correct date and time

• Correct watering days

• Appropriate run times

• Seasonal adjustments

• Proper zone operation

• Battery condition, if applicable

• Rain sensor settings

It's easy for an irrigation schedule to become outdated after a change in weather or landscaping.

For example, a schedule that was appropriate during a hot, dry stretch may provide too much water during a rainy period.

8. Check Each Irrigation Zone

Turn on each zone individually and watch the entire area.

Make sure:

• Every sprinkler head activates

• Sprinklers pop up properly

• Water pressure appears consistent

• Coverage is adequate

• No heads are leaking

• No water is pooling

• Valves are opening and closing properly

Checking zones individually makes it easier to identify problems that might otherwise go unnoticed.

9. Measure Your Irrigation Coverage

A sprinkler system running for 20 minutes doesn't necessarily mean every part of the lawn received the same amount of water.

One simple way to check coverage is to place several small containers around an irrigation zone and run the sprinklers. Comparing the amount of water collected can help reveal uneven coverage.

This type of irrigation audit can provide a better understanding of how much water your system is actually applying rather than relying only on the timer.

10. Watch for Runoff

Water should soak into the soil rather than immediately running down your driveway, sidewalk, street, or other hard surfaces.

If you notice runoff, your irrigation system may be applying water too quickly or running for too long at one time.

This can be especially noticeable on slopes or areas with compacted or heavy clay soil.

Adjusting irrigation into shorter cycles with breaks between them can sometimes allow more water to soak into the soil instead of running off.

11. Adjust Sprinklers After Landscape Changes

Have you recently added:

• A new garden bed?

• Trees or shrubs?

• A paver patio?

• A walkway?

• A retaining wall?

• New sod?

• Expanded lawn areas?

Landscape changes can affect irrigation coverage.

A sprinkler that previously watered lawn may now be spraying a patio or planting bed. New plants may also have different watering requirements than established turf.

Whenever your landscape changes, take the time to evaluate whether your irrigation system still makes sense for the property.

12. Check for Drainage Problems

Sprinkler problems can sometimes look like drainage problems—and vice versa.

If one section of your lawn consistently stays wet, look at both your irrigation and drainage.

Potential causes could include:

• A leaking sprinkler

• Poor sprinkler coverage

• Overwatering

• Compacted soil

• Poor grading

• Low areas that collect water

• Drainage issues

Identifying the actual cause is important before simply changing the irrigation schedule.

13. Clean Up Around Sprinkler Heads

Grass, mulch, leaves, and soil can gradually cover sprinkler heads.

Keep sprinkler heads clear so they can rise properly and distribute water without obstruction.

When mowing, edging, or performing landscape maintenance, take care not to damage exposed irrigation components.

14. Inspect Your System After Severe Weather

South Louisiana weather can be hard on irrigation systems.

After major storms or periods of heavy rainfall, check your sprinkler system for damage.

Look for:

• Shifted sprinkler heads

• Exposed pipes

• Broken components

• Soil erosion around heads

• Damaged wiring

• Standing water

• Changes in spray patterns

Heavy rain can also change soil conditions and landscape grades, potentially affecting how irrigation water moves across the property.

15. Adjust Irrigation for the Season

Your irrigation needs will change throughout the year.

Spring

As warm-season grasses begin actively growing, inspect your system and make sure everything is ready for the growing season.

Spring is a good time to:

• Test every zone

• Replace damaged heads

• Clean nozzles

• Check the rain sensor

• Inspect the controller

• Evaluate coverage

Summer

Louisiana's heat can increase water demand, especially during periods of limited rainfall.

Monitor your lawn for drought stress and make sure irrigation is providing adequate coverage without creating excessive runoff or standing water.

Fall

As temperatures begin to cool, lawn growth and water requirements can change.

Continue monitoring soil moisture rather than automatically maintaining the same summer watering schedule.

Winter

Warm-season grasses generally slow down or become dormant during colder weather.

Irrigation requirements can decrease significantly during the cooler months. LSU AgCenter recommends reducing irrigation during cooler periods and turning off automatic systems when rainfall is sufficient.

How Often Should You Check Your Sprinkler System?

A quick visual inspection should be performed regularly, especially during periods when the system is being used frequently.

A more thorough inspection should be performed:

• At the beginning of the growing season

• Before periods of extreme heat

• After major storms

• After landscaping projects

• When you notice dry or excessively wet areas

• When your water bill unexpectedly increases

• Whenever the irrigation system isn't operating normally

Regular inspections can help identify small issues before they turn into larger irrigation problems.

Signs Your Sprinkler System Needs Professional Attention

Some irrigation problems are easy to identify, while others require a more detailed inspection.

Consider professional irrigation service if you notice:

• Multiple zones aren't working

• Persistent leaks

• Significant pressure problems

• Large areas of uneven coverage

• Frequent sprinkler head failures

• Electrical or controller problems

• Underground leaks

• Water pooling throughout the landscape

• Irrigation that no longer matches your landscape

An irrigation professional can evaluate the system's performance and identify problems that aren't immediately visible.

Keep Your Irrigation System Working for Your Landscape

A sprinkler system is only as effective as its maintenance. Regularly checking sprinkler heads, testing coverage, inspecting for leaks, and adjusting watering schedules can help your lawn receive the water it actually needs.

For South Louisiana properties, irrigation maintenance is especially important because natural rainfall can vary significantly throughout the year. Proper irrigation should complement rainfall rather than simply run on a fixed schedule regardless of weather conditions.

At Emerald Landscapes, we provide professional landscaping and irrigation services throughout South Louisiana. From irrigation maintenance and repairs to complete landscape installation and lawn care, our team can help keep your property healthy and looking its best.

Need help with your sprinkler system? Contact Emerald Landscapes to learn more about our irrigation services.