Irrigation System Repair & Troubleshooting Guide for Henry County, GA

Published: June 8, 2026

You turn on your sprinkler system and notice a geyser shooting up from the middle of your front lawn. Or maybe you've got a patch of grass near the mailbox that's bone-dry while the rest of the yard is soaked. Perhaps your water bill spiked last month and you can't figure out why.

Irrigation problems are one of the most common — and most frustrating — issues Henry County homeowners face during the hot Georgia summer. A broken sprinkler head, a cracked pipe, or a malfunctioning valve can waste hundreds of gallons of water, kill sections of your lawn, and drive your water bill through the roof.

At Hedgecoth Property Solutions, we've been diagnosing and repairing irrigation systems across Locust Grove, McDonough, Stockbridge, and all of Henry County for years. We've seen every problem imaginable — from sprinkler heads snapped off by lawnmowers to entire zones that stopped working because of a single broken wire.

This guide walks you through the most common irrigation system problems, how to troubleshoot them, when you can handle repairs yourself, and when it's time to call a professional. If you're dealing with an irrigation emergency right now, skip ahead to the troubleshooting section — or just call us at 770-490-9519 and we'll get someone out to your property fast.

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Why Irrigation Problems Are So Common in Henry County

Before we get into specific problems and fixes, it helps to understand why irrigation systems in our area tend to have issues in the first place.

Georgia Clay Soil and Ground Movement

Henry County sits on heavy clay soil, and that clay does something destructive to underground systems: it moves. Clay soil expands when wet and contracts when dry, shifting the pipes, fittings, and sprinkler heads buried in your yard.

Over time, this movement stresses connections, cracks fittings, and tilts sprinkler heads so they no longer point where they should. Homes in newer subdivisions near Hampton and south Locust Grove are especially vulnerable because the soil in these areas was often disturbed during construction and hasn't fully settled.

Extreme Summer Heat

When temperatures push past 90°F for weeks at a time — as they do every summer in Henry County — plastic sprinkler components become brittle. PVC pipes expand and contract. Rubber seals dry out and crack. A system that worked perfectly in April can start falling apart by July.

Lawn Equipment Damage

Mowers, edgers, and string trimmers are the #1 cause of sprinkler head breaks. Even a slight impact from a mower deck can crack a spray head or pop-up body. If your sprinkler heads aren't installed at the correct height (flush with the soil surface when retracted), they're sitting targets for equipment damage.

Tree Roots

Henry County's mature landscapes mean tree roots are constantly growing. Oak, pine, and maple roots will wrap around irrigation pipes, eventually crushing them or pushing them out of alignment. Properties near Heritage Park in McDonough or the established neighborhoods around downtown Locust Grove often deal with root intrusion problems.

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The 7 Most Common Irrigation Problems (And What Causes Them)

1. Broken or Leaking Sprinkler Heads

This is the most common irrigation repair we see in Henry County. A broken sprinkler head can waste 10-30 gallons per minute, creating a muddy mess and leaving the rest of your zone under-watered.

Signs of a broken sprinkler head:

• Water spraying erratically or in the wrong direction
• Water bubbling up around the base of the head instead of spraying
• A visible crack, chip, or break in the plastic housing
• The head doesn't pop up or retract properly
• Water pooling around one sprinkler head after the system runs

Common causes:

• Lawn mower or string trimmer impact
• Freeze damage during winter (even mild Georgia winters can crack heads)
• Age and UV degradation — most sprinkler heads last 8-12 years
• Improper installation height (sticking up above grade)
• Settlement causing the head to tilt

2. Clogged Sprinkler Heads and Nozzles

Clogged heads don't spray properly, creating dry spots in your lawn care zones while the surrounding areas get over-watered.

Signs of a clogged head:

• Weak or uneven spray pattern
• Water dribbling instead of spraying
• One side of the spray arc is missing
• The head pops up but barely sprays

Common causes:

• Dirt and debris entering the system during repairs
• Mineral buildup from hard water (common in Henry County well-water areas)
• Insect nests blocking the nozzle opening
• Algae growth inside the pipe

3. Low Water Pressure in One Zone

When an entire zone has weak pressure but other zones work fine, the problem is usually in the zone valve, the piping for that zone, or a leak underground.

Signs of low zone pressure:

• Heads barely pop up or don't pop up at all
• Spray distance is much shorter than normal
• Coverage gaps — you see dry areas that used to get watered

Common causes:

• Underground leak in the zone's main line
• Partially closed or malfunctioning zone valve
• Root intrusion crushing the pipe
• Too many heads on one zone (design issue)

4. Zones Not Turning On

A zone that won't activate at all usually points to an electrical problem or a valve issue.

Signs of a dead zone:

• All other zones work normally
• The controller shows the zone is "on" but nothing happens
• You hear the valve solenoid click but no water flows

Common causes:

• Broken wire between the controller and the valve (wire gets cut by digging, aeration, or roots)
• Failed solenoid on the zone valve
• Corroded wire connections in the valve box
• Controller output failure on that particular zone terminal

5. System Won't Turn On At All

When nothing works, the problem is usually at the source — the water supply, the main valve, or the controller.

Common causes:

• Main water shut-off valve is closed (someone turned it off and forgot)
• Tripped breaker or GFCI outlet powering the controller
• Rain sensor is activated (or malfunctioning and stuck "wet")
• Backflow preventer is closed or damaged
• Controller is not programmed or has lost power

6. Uneven Coverage and Dry Spots

Even when everything is "working," you might notice brown patches appearing in your lawn during hot weather. This is usually a coverage problem, not a break.

Common causes:

• Sprinkler heads are too far apart for the nozzle size
• Heads have shifted due to soil movement and no longer align
• Nozzles are mismatched — some putting out more water than others
• Tree or shrub growth is blocking spray patterns
• Slope is causing water to run off before it soaks in

7. Water Hammer and Noisy Pipes

A loud bang or thump when your sprinkler system turns on or off is water hammer — a pressure surge that can damage pipes and fittings over time.

Common causes:

• Missing or failed pressure regulator
• Zone valves closing too quickly
• Air in the pipes
• Water pressure that's too high (common in some Henry County neighborhoods near municipal water towers)

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Step-by-Step Irrigation Troubleshooting Guide

When something goes wrong with your irrigation system, follow this diagnostic process before calling for repair. You might identify a simple fix you can handle yourself.

Step 1: Check the Controller

Before doing anything else, look at your irrigation controller (timer). Make sure it's powered on, the current date and time are correct, and the program is set to run on the right days and times. A power outage can wipe the programming, and a dead backup battery means the controller forgets everything.

Quick checks:

• Is the display showing the correct time?
• Are the programs still set (start times, run times, days)?
• Is the rain sensor bypass switch in the right position?
• Try manually activating each zone from the controller

Step 2: Walk Each Zone

Turn on each zone one at a time and walk the entire area while it's running. Look for:

• Heads that don't pop up
• Broken or tilted heads
• Clogged nozzles with poor spray patterns
• Wet spots or bubbling water between heads (underground leak)
• Areas where spray doesn't reach (coverage gaps)

Pro tip: Do this early in the morning or in the evening when you can see the spray patterns clearly without sun glare.

Step 3: Check the Valve Boxes

Locate your valve boxes (usually green plastic lids in the ground near the water meter or along the side of the house). Open each one and check for:

• Standing water (indicates a leak)
• Corroded wire connections
• Solenoid that's loose or disconnected
• Valve that's manually bled open

Step 4: Inspect the Backflow Preventer

The backflow preventer is usually located near the water meter or on the side of the house. Make sure both valves are fully open (handles parallel to the pipe). If the backflow preventer is leaking, dripping, or making a hissing sound, it may need to be repaired or replaced.

Step 5: Check Water Pressure

If you suspect pressure issues, you can test with a pressure gauge attached to an outdoor spigot. Normal residential water pressure is 40-80 PSI. If your pressure is below 40 PSI, the system won't perform well. If it's above 80 PSI, you need a pressure regulator to protect your pipes and heads.

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DIY Repairs vs. Calling a Professional

Some irrigation repairs are straightforward enough for a handy homeowner. Others require specialized tools, knowledge of local codes, or experience working with underground utilities.

Repairs Most Homeowners Can Handle

Replacing a pop-up spray head: If the head is the same model and you can unscrew the old one and screw on a new one without disturbing the fitting, this is a manageable DIY job. Just make sure you match the spray pattern (quarter, half, or full circle) and the nozzle size.

Cleaning a clogged nozzle: Remove the nozzle, flush it with water, and use a fine wire or toothpick to clear debris. Be gentle — nozzles are precision components.

Resetting the controller: Reprogramming the timer after a power outage is a simple fix that doesn't require any tools.

Adjusting spray direction: Most spray heads have a screw on top that adjusts the spray distance and a collar that sets the arc. A small flathead screwdriver is all you need.

When to Call a Professional

Underground leaks: If water is bubbling up between sprinkler heads or you notice soggy areas in your yard, you likely have an underground pipe break. Finding and repairing underground leaks requires digging, pipe cutting, and proper fitting — and you need to avoid hitting other underground utilities.

Electrical problems: If zones aren't activating and you've ruled out the controller, you're dealing with wiring issues. Tracing underground wires and repairing solenoid connections requires a multimeter and knowledge of irrigation electrical systems.

Low pressure across the system: If the entire system has low pressure, the problem could be a failing pressure regulator, a backflow preventer issue, or even a problem with your municipal water supply. These require diagnostic experience.

Major repairs or system redesign: If your system has persistent coverage problems, was poorly designed, or needs significant upgrades, a professional can evaluate the layout, calculate proper head spacing, and recommend the right nozzles and flow rates for your property.

Properties with wells: If your irrigation system runs off a well pump, repairs involve both irrigation knowledge and well pump expertise. Call a pro.

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What Professional Irrigation Repair Looks Like

When you call Hedgecoth Property Solutions for irrigation repair in Henry County, here's what to expect:

1. Full System Diagnostic

We don't just fix the obvious problem. We run every zone, check every head, test the controller, inspect the backflow preventer, and evaluate your overall coverage. Often, the problem you called about is a symptom of a bigger issue.

2. Detailed Explanation and Upfront Pricing

Before we start any repair work, we explain what we found, what needs to be fixed, and what it will cost. No surprises on the invoice.

3. Professional Repairs

Our crew carries common replacement parts — spray heads, rotors, nozzles, fittings, wire, solenoids, and valve components — so most repairs are completed in a single visit. For specialized parts, we'll get them ordered and schedule a return trip.

4. System Optimization

After the repair, we adjust all heads for proper coverage, set the controller for the right schedule based on current season conditions, and make sure your system is running as efficiently as possible. This is the kind of thing that separates professional property maintenance from a quick handyman fix.

5. Follow-Up

We'll check back with you after the repair to make sure everything is working properly. If there's any issue with our work, we come back and make it right.

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Preventing Irrigation Problems Before They Start

The best irrigation repair is the one you never need. Here are maintenance practices that keep your system running smoothly throughout the year in Henry County.

Spring Startup (March-April)

When you turn your system back on after winter, do it slowly. Open the main valve gradually to avoid pressure surges that can crack pipes and blow out fittings. Run each zone individually and check for breaks that may have occurred during freeze-thaw cycles.

Mid-Summer Inspection (June-July)

The peak of summer is when your system works hardest. Walk your zones every few weeks during the watering schedule and look for dry spots, broken heads, or coverage changes caused by plant growth.

Fall Winterization (October-November)

In Henry County, we can get hard freezes as early as late October. Winterizing your system — blowing out the pipes with compressed air and shutting down the controller — prevents freeze damage that leads to cracked heads, split pipes, and costly spring repairs. We offer landscaping and irrigation winterization as part of our fall services.

Regular Head Adjustments

Sprinkler heads shift over time. Check them twice a year and make sure they're still level, pointing the right direction, and spraying the correct distance. A head that's tilted 10 degrees can miss its target by several feet.

Keep Valve Boxes Clear

Don't let mulch, soil, or plantings bury your valve boxes. You need to be able to find and access them quickly when something goes wrong.

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How Henry County's Climate Affects Your Irrigation System

Understanding how our local climate impacts your irrigation helps you make smarter maintenance and repair decisions.

Rainfall Patterns

Henry County averages about 50 inches of rain per year, but it comes unevenly. Spring (March-May) tends to be wet, summer (June-August) can be extremely dry with occasional thunderstorms, and fall brings variable rainfall. Your irrigation schedule should be adjusted seasonally — not set once and forgotten.

Summer Heat Stress

From June through August, your lawn may need 1-1.5 inches of water per week just to survive. If your irrigation system isn't covering properly or has a broken head, your lawn will show stress within days during peak heat. Brown patches near Jonesboro and Morrow neighborhoods are often traced back to a single malfunctioning sprinkler head.

Soil Percolation Rates

Clay soil in Henry County absorbs water slowly — about 0.1-0.3 inches per hour. If your sprinklers apply water faster than the soil can absorb it, you get runoff, which wastes water and leaves your lawn under-watered. Cycle-and-soak scheduling (running a zone for a short period, pausing, then running again) helps clay soil absorb water properly.

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Cost of Irrigation Repairs in Henry County

While costs vary depending on the problem and the system, here's a general range for common irrigation repairs in the Henry County area:

• Sprinkler head replacement: $50-$150 per head (parts and labor)
• Nozzle replacement or cleaning: $25-$75 per head
• Zone valve repair or replacement: $150-$350
• Underground leak repair: $200-$600 (depends on depth, location, and pipe type)
• Controller replacement: $200-$500 (depending on features)
• Backflow preventer repair: $150-$400
• Full system diagnostic and tune-up: $150-$350

These are estimates — actual costs depend on your specific system, the severity of the problem, and whether parts are readily available. We provide free estimates for irrigation repair in Henry County.

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Frequently Asked Questions About Irrigation Repair

Why did my sprinkler head break?

Sprinkler heads break for several reasons: lawn mower or string trimmer impact is the most common cause in Henry County. Freeze damage during winter, age and UV degradation (most heads last 8-12 years), and improper installation height also cause breaks. If your heads stick up above the soil surface when retracted, they're vulnerable to equipment damage.

How do I know if I have an underground irrigation leak?

Watch for these signs: unexplained wet or soggy areas in your yard, areas that are greener and lusher than the surrounding lawn (extra water from the leak), a spike in your water bill, reduced pressure in one zone, or water bubbling up between sprinkler heads when the system runs. If you suspect a leak, call for professional leaf removal or irrigation diagnostic service before the problem gets worse and causes soil erosion.

Can I replace a broken sprinkler head myself?

You can replace a broken spray head if you can find the exact same model and the threaded fitting below ground is intact. Unscrew the old head, screw on the new one, and adjust the spray pattern. However, if the fitting is damaged, the head is buried too deep to access, or you're not sure what model you need, it's best to call a professional to avoid making the problem worse.

How often should I have my irrigation system inspected?

We recommend a full professional inspection twice a year — once at spring startup (March-April) and once in mid-summer (June-July) when the system is working hardest. Between professional inspections, walk your zones every 2-3 weeks during the watering season and look for obvious problems like broken heads, dry spots, or soggy areas.

Why does one zone have low water pressure?

Low pressure in a single zone usually means there's an underground leak in that zone's piping, a partially closed or malfunctioning zone valve, root intrusion crushing the pipe, or too many sprinkler heads on that zone for the available water flow. The zone valve and pipe need to be inspected to pinpoint the cause.

How much water does a broken sprinkler head waste?

A broken spray head can waste 10-30 gallons per minute depending on water pressure and the type of break. If that head runs for 20 minutes per cycle, 3 times per week, that's 600-1,800 gallons per week — or 2,400-7,200 gallons per month. On a Henry County water bill, that adds up fast. Fixing a broken head pays for itself in water savings within weeks.

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Call Hedgecoth for Fast Irrigation Repair in Henry County

A broken irrigation system doesn't fix itself — and every day you wait, your lawn suffers and your water bill climbs. Whether you've got a single broken head, a zone that won't turn on, or an entire system that needs troubleshooting, Hedgecoth Property Solutions is here to help.

We serve homeowners and businesses throughout Locust Grove, McDonough, Stockbridge, Jonesboro, Morrow, Hampton, and all of Henry County. Our team knows the local soil conditions, the common irrigation problems in our area, and how to fix them fast.

Call us today at 770-490-9519 or visit our contact page to schedule a free irrigation diagnostic. We'll find the problem, explain the fix, and get your system running right — usually in a single visit.

Don't let a broken sprinkler head turn your lawn brown this summer. Let Hedgecoth keep your property looking its best.