Your Guide to Common Sprinkler Problems in Irving

Is your lawn looking a little less green than your neighbor’s? Before you spend another dollar on fertilizer or new seed, take a look at your sprinkler system—Mr. Sprinkler Repair in Irving is here to help diagnose and fix these issues. An inefficient or damaged irrigation system is often the real reason behind brown patches, weak grass, and high water bills. Many homeowners in Irving see the signs—dry spots, sputtering heads, or mysterious puddles—but aren’t sure what they mean.

This guide from Mr. Sprinkler Repair will walk you through four of the most common sprinkler issues we see in the North Texas area. We’ll help you understand the symptoms, figure out what’s causing them, and know when it’s time to call a professional for sprinkler repair in Irving. You’ll learn what’s happening underground so you can get your lawn back to being healthy and green.

1. Improper Head Spacing: The Cause of Dry and Soggy Spots

Have you ever noticed that one part of your lawn is practically a swamp while another is completely parched? This frustrating pattern is a classic sign of improper sprinkler head spacing. Your system should provide even, overlapping coverage, much like the spray from two shower heads covering a whole bathtub. When it doesn’t, your lawn suffers.

Symptoms You’ll See:

Distinct brown or yellow patches in your yard.
Areas of lush, fast-growing grass right next to struggling sections.
Water running off your lawn onto the sidewalk or driveway.

Common Causes:

Original Installation Flaw: Heads were installed too far apart, leaving gaps where water doesn’t reach.
Poor Head-to-Head Coverage: The spray from one sprinkler head should reach the base of the next one. Without this overlap, you get dry spots.
Mismatched Nozzles: Different nozzles have different spray patterns and water flow rates. A mix-and-match approach often leads to chaos.
Landscape Changes: A new flower bed, a growing tree, or even a child’s playset can block the spray from a sprinkler head that was once perfectly placed.

DIY Checks vs. Calling a Pro

You can perform a simple check yourself. Turn on a zone and watch where the water lands. Do you see large, dry crescents between heads? Are some areas getting hit by multiple streams while others get none?

While you can clean a clogged nozzle, correcting spacing is a complex job. A professional technician from Mr. Sprinkler Repair will do more than just move a head. We analyze the entire zone to ensure true head-to-head coverage. This might involve re-spacing heads, replacing nozzles to match precipitation rates (how much water is applied over time), and adjusting arcs to account for Irving’s notorious wind and clay soil, which can affect water absorption and runoff.

2. Non-Uniform Coverage: When Your System Fights Itself

Non-uniform coverage is a broader issue where your lawn receives inconsistent watering across an entire zone. This isn’t just about spacing; it’s about the system’s overall health and design. If your sprinklers seem to be working against each other, you likely have a coverage problem.

Symptoms You’ll See:

A generally patchy and unhealthy-looking lawn.
Fungus or mushrooms growing in some spots (too much water).
Weak, thin grass in other areas (not enough water).

Common Causes:

Mixed Head Types: Using both pop-up spray heads and rotating heads in the same zone is a recipe for disaster. They apply water at vastly different rates.
Low Water Pressure: Not enough pressure means the spray won’t reach its intended distance, causing the coverage pattern to shrink.
Clogged Nozzles: Dirt, grass, or small pebbles can easily clog the small openings in sprinkler nozzles, disrupting the spray pattern.
Sunken Heads: Over time, sprinkler heads can sink into the soil, causing the spray to be blocked by the surrounding grass.

DIY Checks vs. Calling a Pro

You can easily check for and clean clogged nozzles with a paperclip or small tool. You can also use a small shovel to clear grass away from heads and ensure they are sitting high enough to spray freely.

However, if you have mixed head types or suspect a pressure issue, it’s time to call for a professional diagnosis. As part of our sprinkler repair in Irving, we will test your system’s pressure, standardize the head types within each zone for uniform flow, and ensure every part is working in harmony. This is crucial for complying with local watering restrictions, as an efficient system makes every drop count.

3. Air in the Lines: The Sputtering Sprinkler Problem

Do your sprinklers cough and sputter to life before finally spraying water? That hissing and spitting sound is caused by air trapped in the irrigation lines. While a little bit of sputtering is normal during seasonal startups, persistent air in the lines points to a bigger problem.

Symptoms You’ll See:

Loud hissing or sputtering noises when a zone turns on.
Water that looks milky or white for the first few moments.
Heads that hammer or vibrate as they operate.
Uneven watering as the air pockets disrupt consistent flow.

Common Causes:

Seasonal Startup: Air naturally enters the system when it’s drained for winter.
Small Leaks: A tiny crack or loose fitting on the main irrigation line can suck in air when the system is off.
Damaged Valves: A worn-out or broken irrigation valve may not seal properly, allowing air to enter the pipes.
Improper Drainage: If the lines don’t drain correctly, air pockets can form.

DIY Checks vs. Calling a Pro

When you first start your system in the spring, you can help purge the air by running each zone for a few minutes until the sputtering stops. However, if the problem continues every time you water, you likely have a leak.

Finding an underground leak is tricky. Our technicians use specialized equipment to locate leaks without digging up your entire yard. We can repair the damaged pipe or fitting and inspect your valves to ensure your system is airtight and running smoothly and quietly.

4. Valve Box Flooding: A Hidden Threat to Your System

The green, rectangular lid in your yard covers your sprinkler system’s control center: the valve box. This box houses the electric valves that open and close to run each zone. If you open that lid and find it full of water, you have a problem that can’t be ignored.

Symptoms You’ll See:

A pool of water inside the valve box, even when it hasn’t rained.
Zones that won’t turn on or off.
A soggy patch of grass around the valve box lid.

Common Causes:

Broken Fittings or Pipes: A leak from a pipe or fitting connected directly to a valve is a common cause.
Leaking Valves: The valve itself may be old, cracked, or have a worn-out diaphragm seal.
Poor Drainage: North Texas clay soil doesn’t drain well. Rainwater can seep into the box and get trapped if there isn’t proper drainage.
High Groundwater: In some areas, the natural water table is high enough to flood the box from below.

DIY Checks vs. Calling a Pro

You can soak up the water with a sponge or a wet-dry vacuum to get a better look. See if you can spot an obvious drip or crack. But be careful—the valve box contains low-voltage wiring.

Because of the risk to the electrical components, valve box flooding should be handled by a professional. A flooded box can short out the wiring and solenoid, leading to costly damage. Our team will identify the source of the water, repair the leak, add gravel or a drain to improve drainage, and use waterproof connectors to protect the sensitive wiring from future moisture.

Homeowner’s Quick-Check Diagnostic List

Dry Spots? → Check for blocked, sunken, or improperly spaced heads.
Soggy Patches? → Look for leaks or heads spaced too closely.
Sputtering Heads? → Could be air from a small leak or normal startup. If it persists, call for help.
Water in Valve Box? → Check for leaks around valves or poor drainage.
A Zone Won’t Turn On? → Check the controller first, then look for issues at the valve.

Frequently Asked Questions

Question: How often should I have my sprinkler system inspected?
Answer: We recommend a professional inspection at least once a year, ideally in the spring before the heavy watering season begins. This ensures your system is efficient, compliant with Irving’s watering rules, and ready for the summer heat.
Question: Why are my water bills so high?
Answer: Hidden leaks, non-uniform coverage, and improper scheduling are the top reasons for high water bills related to irrigation. A single small leak can waste thousands of gallons per month. A professional inspection can pinpoint and fix this costly waste.
Question: Can I just replace one broken sprinkler head myself?
Answer: You can, but it’s important to replace it with the exact same make and model, or one with a perfectly matched precipitation rate. Installing the wrong type of head can disrupt the entire zone’s watering uniformity, creating new dry or wet spots.
Question: How does clay soil affect my sprinkler system?
Answer: Clay soil absorbs water very slowly. An improperly configured system will apply water faster than the soil can absorb it, leading to significant runoff and waste. We can program your system to use “cycle and soak” settings, which apply water in shorter bursts with pauses in between, giving the soil time to drink it in.

Get Your Sprinkler System Fixed Right

Don’t let sprinkler problems ruin your lawn and drain your wallet. If you’re seeing any of these signs, it’s time for a professional look. The team at Mr. Sprinkler Repair is here to help homeowners across Irving and the surrounding areas.

We offer a comprehensive 20-point irrigation inspection to diagnose issues with spacing, coverage, pressure, leaks, and electrical components. Our experienced technicians can find the root cause of your problem and provide same-day repairs in most cases.

Ready for a greener lawn and a smarter system?

Call us today or use our online booking form to schedule your sprinkler system inspection.