Check sprinkler system

Check your sprinkler system for proper coverage and needed repairs.

Why it matters#

Regular checks catch broken heads, coverage gaps, and leaks before they waste water or damage your lawn. Monthly inspections save water and money.

What you'll need#

Tools#

• Screwdriver or sprinkler adjustment tool
• Flashlight

Materials#

• Replacement heads (if needed)

Steps#

1. Run each zone manually#

At your controller, activate each zone one at a time. Watch each zone for 3-5 minutes.

2. Walk the zone while running#

Observe each head in the active zone. Check that heads pop up fully and spray correctly.

3. Check for coverage gaps#

Look for dry spots that aren't getting water. Heads may need adjustment or you may need additional heads.

4. Look for broken heads#

Identify heads that don't pop up, spray erratically, or gush water (geyser effect).

5. Check for overspray#

Note heads spraying onto sidewalks, driveways, or streets. This wastes water and may violate local ordinances.

6. Adjust spray patterns#

Use a screwdriver or adjustment tool to correct spray direction and radius. Most heads have adjustment screws on top.

7. Look for leaks#

Watch for water pooling around heads (seal leak) or soggy areas between heads (possible pipe leak).

8. Clean clogged heads#

If a head isn't spraying properly, remove it, clean the filter screen, and flush debris from the riser.

9. Check the controller schedule#

Verify watering times and days are appropriate for current weather and any local restrictions.

10. Note needed repairs#

Make a list of any heads that need replacement or issues that need professional attention.

Pro tips#

• Check the system monthly during watering season
• Run checks early morning when water pressure is highest and you can see spray patterns clearly
• Adjust schedules seasonally—lawns need less water in spring/fall than summer
• Mark heads with flags before mowing to avoid damage

Warnings#

• Heads that spray directly onto the house can cause moisture damage—adjust away from structures
• Underground leaks can go unnoticed and waste thousands of gallons—watch for unexplained soggy spots
• Don't ignore broken heads—they waste water and create dry spots

When to call a pro#

Call a sprinkler technician if: you find soggy areas indicating underground leaks, multiple heads need replacement, you need to add or relocate heads, or the controller is malfunctioning. Monthly inspections are DIY; leave repairs to professionals if you're not comfortable.