What are the signs of a broken irrigation system?

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Irrigation sprinkler head surrounded by a puddle in green grass.

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by Henry Ramirez on Feb 09, 2026

The most common signs of a broken irrigation system are not dramatic water spouts, but subtle clues that signal costly inefficiencies. Watch for a sudden high water bill, persistent brown spots in your lawn, soggy patches of grass, or individual sprinkler heads that sputter, mist, or leak long after the system shuts off.

Irrigation sprinkler head surrounded by a puddle in green grass.

The Two Faces of a Failing System: Obvious vs. Insidious

When most people imagine a broken sprinkler, they picture a geyser shooting water high into the air—a catastrophic failure that's impossible to ignore. While these events certainly happen, especially after lawn mower damage or severe winter freeze damage, they represent only a fraction of irrigation problems. The far more common, and ultimately more expensive, issues are the silent ones that slowly drain your bank account and harm your landscape.

This reality presents homeowners with two distinct approaches to irrigation management:

Passive Observation

This is the "wait and see" method. You react to problems only when they become obvious, like a flooded flowerbed or a large, dead patch of grass. While it requires no upfront effort, it almost always leads to higher water bills, potential landscape damage from over or under-watering, and more expensive emergency repairs down the line.

Proactive System Audit

This approach involves regularly checking your system's health to find hidden inefficiencies before they escalate. It requires a small investment of time but pays dividends in water conservation, lower bills, and a healthier lawn. It's about shifting from damage control to performance management, uncovering the slow leaks and poor coverage that quietly waste thousands of gallons.

Quantifying the Hidden Waste: How Small Leaks Become Big Bills

It's easy to underestimate the impact of a "minor" issue. Consider a single sprinkler head that has a worn-out seal and leaks just a few drips per second. That seemingly insignificant leak can waste hundreds of gallons of water over a single month. Now multiply that by several faulty heads, a misaligned spray pattern watering the sidewalk, or a zone valve that never fully closes. The waste adds up exponentially.

This is why many homeowners are shocked by their bills. Their systems appear to be working, but inefficient watering practices are rampant. In fact, homes with clock timer controlled irrigation systems use about 50 percent more water outdoors than homes without irrigation systems, often due to these hidden flaws. The goal of an audit is to close that efficiency gap and ensure every drop of water is used effectively to maintain a bright, healthy landscape.

Adopt a Pro's Mindset: Your 4-Step DIY Irrigation System Audit

You don't have to be a seasoned technician to spot the most common signs of trouble. By performing a simple, systematic check a few times during the watering season, you can identify problems early. We call it the "Inspect, Connect, Direct, Select" method, a simplified version of the process professionals use.

1. Inspect: The Ground-Level Walkthrough

With the system turned off, walk through your entire property. Look closely at each of the sprinkler heads. Are any of them cracked, chipped, or partially buried in dirt or overgrown grass? Check for signs of lawn mower damage. Look for areas of soil erosion or small, perpetually damp spots, which could indicate a slow underground pipe leak. Also, inspect the valve boxes to see if they are full of water, a clear sign of a leak.

2. Connect: Test Each Zone Individually

Now, go to your irrigation controller and manually turn on one zone at a time. As the zone runs, watch the heads pop up. Do they rise fully, or do some struggle? Sputtering sprinkler heads or a fine mist often indicate low water pressure. This could be a system-wide issue or isolated to a single zone, suggesting a downstream leak or blockage. If you notice a particular head or area continues to seep or puddle water long after the zone has shut off, you may have a bad irrigation valve. A leaking zone valve often happens when the valve's diaphragm fails to close completely, causing a constant, low-level water loss.

3. Direct: Check for Proper Coverage

As each zone runs, observe the spray pattern. The goal is what's known as "head-to-head coverage," where the spray from one sprinkler reaches the base of the next. Are you watering your driveway, fence, or sidewalk? This is one of the most common sources of water waste. Look for dry, brown spots in the lawn, which signal poor coverage, and overly green, soggy patches, which signal the opposite. These are classic symptoms that an audit can uncover. According to irrigation experts, common problems affecting sprinkler performance that an audit uncovers include worn or clogged nozzles, incorrect pressure, and mismatched sprinkler head types within the same zone.

4. Select: Review Your Controller Settings

Finally, review your controller programming. Are you watering at the right time of day (early morning is best to minimize evaporation)? Are the run times appropriate for your soil type, sun exposure, and the season? Many controller programming errors lead to inefficient watering without any broken parts. Upgrading to a smart irrigation controller that uses weather data can automate this process, but even a basic controller needs its settings reviewed periodically.

The Homeowner's Triage Test: When to DIY and When to Call for Repair

After your audit, you'll have a better sense of your system's health. The next step is deciding what to do about it. Here's a simple guide to help you triage the issues you've found:

Simple DIY Fixes: Many common issues are easy to fix. This includes cleaning clogged nozzles with a pin, unscrewing a pop-up sprinkler to clear debris from the filter, or adjusting the spray pattern on a rotor or spray head to keep water off the pavement.

Red Flags That Require a Professional: Certain signs point to more complex problems that are best left to a licensed professional. These include persistent low water pressure across a zone (which could signal a crushed or leaking underground line), any issues involving electrical wiring, a master shut-off valve that won't work, or any repair involving cutting into PVC or poly pipe. A professional repair service can perform leak detection and, as part of their spring start-up process, conduct a 50-point system inspection to catch everything you might have missed.

Regarding the life expectancy of an irrigation system, many core components like PVC pipes can last over 20 years. However, parts exposed to the elements, like sprinkler heads, seals, and gaskets, have a much shorter lifespan and require periodic replacement to maintain system efficiency.

Key Factors in Irrigation Management

Understanding what's at stake helps clarify the importance of proactive maintenance. Here are the key factors every homeowner should consider:

Long-term cost savings on water bills
This is the most direct benefit. A tuned-up system uses significantly less water, which is reflected immediately in your monthly utility bills. Fixing leaks is the fastest way to reduce your landscape water management costs.

Water conservation and efficiency
Beyond your wallet, efficient irrigation is crucial for environmental stewardship. A proactive audit ensures you're not wasting a precious community resource and are doing your part for water conservation.

System longevity and health
An irrigation system is a significant investment. Regular maintenance prevents minor issues from causing major component failures, extending the life of your pumps, valves, and pipes and protecting your investment.

Prevention of landscape damage
Improper watering is a leading cause of landscape problems. Overwatering can lead to lawn fungus, disease, and root rot, while under-watering creates dry spots and stresses plants, making them more susceptible to pests. A well-maintained system ensures your lawn and garden get exactly the water they need.

Making the Right Choice for Your Needs

The best approach to irrigation maintenance depends on your goals, budget, and available time. There is no one-size-fits-all answer, but here is some guidance based on different homeowner profiles.

For the Cost-Conscious Homeowner

If your primary goal is reducing a high water bill, the 4-step DIY audit is your best starting point. It costs nothing but your time and will immediately uncover the most obvious sources of waste. Focusing on fixing misaligned heads and cleaning clogged nozzles can make a significant impact on your water usage without a large financial outlay.

For the Busy Professional

If you value your time and want the peace of mind that comes with expert oversight, scheduling a professional irrigation system tune-up is the most efficient choice. A qualified technician can perform a comprehensive audit, make necessary repairs, and optimize your controller settings in a fraction of the time it would take to do it yourself, ensuring reliability all season long.

For the Environmentally-Aware Gardener

If water conservation is your main motivation, a hybrid approach often works best. Perform your own regular visual inspections, but invest in a professional audit annually. Professionals can use tools like catch cans to measure your system's exact precipitation rate, which is the standard method to determine distribution uniformity. This data allows for precision adjustments that maximize efficiency and eliminate waste, aligning your system's performance with your sustainability goals.

Ultimately, a healthy, efficient irrigation system is the foundation of a beautiful landscape and a responsible home. Whether you choose to inspect the system yourself or rely on a trusted partner, proactive management is the key to saving money, conserving water, and enjoying your yard to the fullest.

For homeowners in the Greensboro, NC area looking for a comprehensive system audit and professional repair, the team at Ramirez Landscaping & Lighting has the local expertise to diagnose and solve any irrigation challenge. Contact us today for a personalized assessment.