St. Petersburg Dry Spots: Save, Repair, or Replace After an Irrigation Coverage Check

St. Petersburg Dry Spots: Save, Repair, or Replace After an Irrigation Coverage Check

Dry spots in a St. Petersburg lawn do not automatically mean the sod should be removed. A section of St. Augustine may look brown because the irrigation system is missing it, because the controller is not following the correct schedule, or because the grass is no longer suited to that part of the property.

The first decision is not “How much new sod should I buy?” It is whether the living turf can be saved, whether the failed section is large and connected enough to repair, or whether the damage has spread far enough that replacement would create a more consistent lawn.

Centurion Landscaping uses a preliminary Save, Repair, or Replace framework based on two measurements:

• the percentage of the lawn that is damaged; and

• the square footage of the damaged or replacement area.

Those numbers are considered only after the watering source and irrigation coverage are checked.

First, identify the water provider and source

A St. Petersburg mailing address does not always identify the rule that controls the irrigation system. The property may use City of St. Petersburg water, Pinellas County Utilities, reclaimed water, a private well, or an HOA or community-managed system.

Before changing the controller, check the utility bill, meter, reclaimed-water markings, and any HOA irrigation information. The current rule should come from the exact provider, not from a neighbor’s schedule or a generic county chart.

As of September 7, 2026, Pinellas County Utilities is operating under Modified Phase III restrictions. Its current watering schedule and rules apply to Pinellas County Utilities customers and tell residents served by another supplier to verify their restrictions with that supplier. The page also states that restrictions can change at any time.

That provider check matters because a lawn can look underwatered when the real problem is an incorrect assigned day, a pressure-managed reclaimed system, or an HOA schedule that does not match the controller.

Run an irrigation coverage check before judging the sod

Turn on each zone and watch the complete pattern. Do not assume that water leaving the sprinkler head is reaching the grass evenly.

Look for:

• heads that do not rise fully;

• nozzles blocked by turf, soil, plants, or edging;

• spray landing on pavement or beds instead of the lawn;

• dry gaps between adjacent heads;

• broken heads, leaking fittings, or valves that do not close;

• weak pressure near the end of a zone;

• one area receiving runoff while another remains dry; and

• controller settings that do not match the current provider rule.

For Pinellas County Utilities customers, the current rule allows an irrigation system to operate for testing and repair as often as once a week, limits an individual test to 10 minutes, and requires an attendant to be present. Other providers may use different rules, so verify the exact system before testing.

A useful coverage check includes a short video of every zone and wide photos showing where the brown pattern sits in relation to the sprinkler heads. Photos alone cannot prove pressure, root condition, soil moisture, or the legal watering schedule, but they can reveal a repeated coverage outline.

SAVE: 20% or less of the lawn is damaged

Save is the preliminary direction when no more than 20% of the lawn is damaged, living turf remains, and the likely watering or irrigation cause can be corrected.

Signs that the lawn may still be a Save candidate include:

• green runners or rooted turf remain inside or around the thin area;

• the damage follows a correctable sprinkler gap;

• the sod is stressed but not loose, fully dead, or detached;

• the affected area stops expanding after coverage is corrected; and

• the existing St. Augustine variety still fits the light and traffic conditions.

Saving does not mean the lawn is guaranteed to recover. It means removing all of the turf may be premature. The corrected area should be observed to see whether living runners begin closing the thin sections.

A Save recommendation can change if the brown area is actually caused by another condition. Shade, compaction, pet or traffic damage, insects, disease, installation problems, and drainage indicators may contribute to turf loss. They should not be diagnosed with certainty from a photograph.

REPAIR: more than 20% but no more than 40% is damaged

Repair is the preliminary direction when more than 20% but no more than 40% of the lawn is damaged and the failure is localized enough to remove and replace as a coherent section.

A repair also needs:

• a practical boundary;

• an irrigation correction before installation;

• a reasonable match to the remaining sod;

• enough healthy turf outside the repair area to justify keeping it; and

• a finished result that will not look like unrelated patches.

In Pinellas County, Centurion’s minimum applies to the damaged or replacement area, not the total lawn. A repair or installation request must include at least 1,000 square feet of damaged area.

For example:

• A 4,000-square-foot lawn with 1,200 square feet damaged is 30% affected. It falls in the Repair range and exceeds the Pinellas minimum.

• A 6,000-square-foot lawn with 900 square feet damaged is 15% affected. It falls in the Save range and is below the installation minimum, even though the total lawn is larger.

• A 3,000-square-foot lawn with 1,050 square feet damaged is 35% affected. It may qualify as a Repair if the area is connected, the irrigation issue is corrected, and the remaining turf is worth preserving.

The percentage and square footage answer different questions. The percentage identifies the likely decision path. The damaged square footage determines whether the installation or repair lead meets the minimum.

REPLACE: more than 40% is damaged, or repair would no longer be coherent

Replace is the preliminary direction when more than 40% of the lawn is damaged. Replacement may also be appropriate when:

• failure is spread through most of the lawn;

• earlier repairs repeatedly failed;

• the existing variety is unsuitable for the site;

• the remaining turf is too weak to blend with new sod; or

• several repair islands would create an inconsistent lawn.

Replacement should still follow an irrigation diagnosis. New sod does not correct a blocked head, low pressure, a controller set to the wrong provider schedule, or a zone that misses the same corner every time.

If the cause is not corrected, the replacement can fail in the outline of the old damage.

St. Augustine variety and site fit still matter

St. Augustine is a species with several cultivars, and a repair should match the existing turf as closely as practical.

The UF/IFAS St. Augustinegrass guide explains that cultivars differ in environmental tolerances and appearance. Floratam is widely used in Florida, but UF/IFAS notes that it has relatively poor shade tolerance and does not persist well with less than about six hours of sunlight per day.

That means a dry-looking Floratam section under increasing shade may not be solved by adding more irrigation. Excess watering in a low-light area can create a different problem. The preliminary review should consider sun exposure, living runners, irrigation coverage, and variety match together.

Centurion should represent a sod product as a standard installation only when the current Items Catalog and matching Price Book Assembly are active. At the time of this article, the live catalog and assembly support St. Augustine/Floratam rip-and-replace work. Other St. Augustine varieties may require separate availability confirmation.

Check establishment rules before repairing or replacing

Newly installed sod needs an establishment plan that follows the current provider rule.

For Pinellas County Utilities customers, the current page describes a 60-day establishment period, requires proof of new lawn material, and states that a full irrigation zone may run only when at least 50% of the zone contains new material. Partial or dispersed plantings may have to be hand watered. The page also advises against major re-sodding during the current drought conditions.

Those details may not apply to a property served by the City of St. Petersburg or another provider. Verify the exact source immediately before scheduling. A valid establishment allowance, the required proof, and the permitted hours should be confirmed before sod is ordered.

What to submit for a free preliminary Sod Rescue diagnosis

A useful intake includes:

1. The property address.

2. The water provider and source, if known.

3. Total lawn square footage.

4. Damaged-area square footage.

5. Wide photos of the entire lawn.

6. Close photos showing living runners and dead sections.

7. A short video of every irrigation zone.

8. The St. Augustine variety, if known.

9. Any previous repair or replacement history.

10. The date the problem first appeared.

The preliminary review can then sort the request into Save, Repair, Replace, or below-minimum screening. Exact measurements, an on-site irrigation test, root condition, and site conditions may change the recommendation.

Make the decision in the right order

For St. Petersburg dry spots, use this sequence:

1. Identify the exact water provider and source.

2. Verify the current watering and testing rules.

3. Run the irrigation system and document coverage.

4. Measure the total lawn and damaged sections.

5. Calculate the damaged percentage.

6. Check whether living turf remains.

7. Apply the Save, Repair, or Replace thresholds.

8. Confirm that repair or replacement includes at least 1,000 square feet of damaged area in Pinellas County.

9. Verify the establishment rule before ordering sod.

This process helps avoid replacing turf that may still recover and helps prevent new sod from being installed over the same unresolved irrigation problem.

Not sure whether your sod should be saved, repaired, or replaced? Start your free preliminary Sod Rescue diagnosis at https://www.centurionktls.com/lawn-review.