
A hidden irrigation leak can cause an array of expensive headaches, from high water bills and damaged landscaping to structural issues around your home. And in Florida, where sandy soil, lush lawns, and year-round watering systems are common, detecting an irrigation system leak as early as possible is essential for maintaining both property value and water efficiency.
The only problem is, because these leaks are underground, identifying them isn’t always easy. Whether you suspect a slow drip or a major underground break, here are six effective techniques you can use that will help you determine if you have an irrigation leak on your Florida property.
One of the simplest and most reliable ways to check for leaks is by monitoring your water meter. First, turn off all water inside your home. Then, ensure your irrigation system is also off. Locate the water meter (usually near your home or in a box near the street) and note the reading or spinning flow indicator. If it continues to move despite all water being off, then it could indicate a hidden leak, and if you don’t see any leaks inside the home, then it could possibly be in the irrigation lines.
If you have a newer meter, then depending on your model, it may include a leak detection symbol on the display screen that flashes when continuous flow is detected.
If your lawn has patches of overly green grass, damp soil, or pooling water, especially when your irrigation system hasn’t been running, then these are sure signs that you most likely have a leak in your underground irrigation lines. It’s important to note that Florida’s warm climate can quickly erase these signs through rapid evaporation, so you will want to check early in the morning or late evening when the soil is at its coolest.
You should also pay attention to the areas near sprinkler heads and along known pipe routes. If soggy ground appears repeatedly in the same area, then it’s a strong indication of a leak.
Sprinkler heads that aren’t popping up fully, are spraying weakly, or have erratic coverage may be tied to a line that has a leak or blockage. Compare water pressure from one zone to another. If one zone seems significantly weaker than others, then the issue might be in the buried piping that is feeding that zone.
Plus, if you have broken or tilted heads, these can also cause water to leak at the base, so make sure each head is upright and spraying in the correct direction.
Most irrigation systems allow separate zones to be activated individually. Use your control panel to run each zone manually for a few minutes. Walk through your yard during each test to listen for hissing, bubbling, or gurgling sounds underground, especially near connection points or valve boxes. This process will help you isolate which zone is losing water, thus narrowing down the area where the repairs may be needed.
In Florida, the typical irrigation system often includes an underground valve box that controls the water flow to various zones. Lift the lids and inspect inside for standing water, muddy areas, or rusted components. A slow valve leak can go undetected for months, especially if it’s only dripping when the system is off.
Also inspect your backflow preventer—a critical part of your irrigation setup—to ensure it’s not leaking at its joints or seals.
If you’re unable to pinpoint the leak yourself or suspect an underground pipe break, then you may want to call a professional leak detection service. These experts use specialized tools like listening devices, moisture sensors, and pressure testing to locate hidden leaks with incredible precision. Ultimately, hiring a professional leak detector can help you save time, money, and a lot of guesswork.
Irrigation leaks usually start small, but over time even a small drip can waste thousands of gallons of water and lead to costly landscape or foundation repairs. In Florida, being proactive with routine irrigation maintenance is more than a good idea—it’s essential. If you fear that you have a hidden leak somewhere in your irrigation system, then use these techniques to catch the problem early and keep your lawn healthy and your water bill in check.