Dry or Brown Patches: Cause, Check, and Cost

A system that turns on and runs fine can still leave dry patches, because the problem usually isn’t whether water is flowing, it’s whether it’s landing where it needs to. Check this first: run the affected zone and watch where the spray actually lands versus where the dry patch is.

Check this first (ten minutes)

Run the zone during a legal watering window and watch the pattern from each head near the dry area.
Look for anything blocking a head’s spray: a shrub, ornamental grass, or a fence that’s grown or been added since the system was installed.
Check whether the dry patch sits at the edge of a head’s throw distance, which is a classic sign of a coverage gap rather than a broken part.
Note whether the patch is new or has been there a while, and whether it’s gotten larger, smaller, or stayed the same size, since that tells us whether it’s worsening or already stable.

What is usually wrong

What you notice	Likely cause	Fix and cost
Patch at the edge of a head’s throw	Wrong nozzle or arc for that distance	$100 to $275 coverage fix
Patch behind a shrub, fence, or other new obstruction	Head blocked by growth or a new structure	$100 to $275 coverage fix, may include repositioning
Head physically broken or missing near the patch	Head needs replacement	$15 to $50 per head
Patch persists in the exact same spot despite repeated adjustment	Possible partial line blockage or leak feeding that section	See broken line and leak repair

These sit inside the zone coverage fix range on the pricing page, on top of the $75 to $150 diagnostic visit (folded into the coverage-fix price).

The local why

Landscaping in Marion County matures quickly in the warm-season growing climate here, and a head with clear coverage when a system was installed can be significantly blocked within a few years by a shrub or ornamental grass that’s grown in around it. On a one-day-a-week watering schedule, a dry patch also has less chance to recover between waterings than it would somewhere with looser rules, which makes correcting the coverage sooner rather than later matter more here than in a state without the restriction.

When to call

If you’ve confirmed the pattern is missing a spot rather than a head being obviously broken, this is a straightforward tune-up call rather than an emergency repair. If the same patch keeps coming back despite adjustment, mention that specifically when you call, since it’s worth checking for a partial line issue rather than continuing to re-adjust heads that aren’t the actual cause.

Where we work

On site across Ocala, Belleview, Dunnellon, Silver Springs Shores, Summerfield, On Top of the World, Marion Oaks, and Reddick. The zone coverage fix and adjustment service page covers the full scope, and the irrigation repair cost calculator turns your symptom into a specific estimate.

Frequently Asked Questions

The sprinklers run fine but I still have dry patches. Why?

Coverage, not power. A head that's drifted out of alignment, sunk below grade, or has the wrong nozzle for its throw distance leaves gaps even on a system that turns on and off perfectly. Growth (shrubs, ornamental grass, a new fence) blocking a head's spray is another common cause.

What does fixing dry patches cost?

$100 to $275 for a full zone coverage fix covering every zone, which is usually all it takes since this is almost always an adjustment problem rather than a broken part. If a head is actually broken, that adds $15 to $50 per head.

Could a dry patch be a sign of something more serious, like a line leak?

Usually not directly, dry patches are a coverage problem, while a leak more often shows up as a wet spot or a water bill spike. But if a dry patch keeps appearing in the same place month after month despite repeated adjustment, worth ruling out a partial blockage or line issue feeding that section.

How long until a dry patch recovers once the coverage is fixed?

Depends on how stressed the grass already is and the season, but most patches recover visibly within a few weeks of correct watering resuming, faster in Florida's warm-season growing months than in cooler stretches.