Locating and Repairing Broken Lateral and Main Lines
Most irrigation leaks are not dramatic. A lateral line cracked by a shovel or a root, a glued fitting that let go, or a poly line pulled loose at a barb will seep for weeks before the surface shows it. In Laredo the ground itself is part of the cause: expansive soils and caliche shift as moisture changes, and rigid PVC fittings crack under that repeated movement, especially at tees, elbows and the connection back to the valve manifold.
The break is often not where the water shows up. Water follows the path of least resistance along the pipe trench and through caliche seams, so a soggy patch can sit several feet from the actual failure. Finding the true point of failure matters because digging in the wrong place damages more of the yard and leaves the leak running underneath.
Frequent Leak & Broken Line Repair Symptoms We Fix
- A soggy or sunken patch that never driesA cracked lateral or failed fitting seeping into the soil between watering days.
- Heads that barely spray or reach half their radiusA major break on the zone dropping pressure before water gets to the heads.
- A water bill that climbs without more wateringA slow leak on a pressurized main running whether or not the zones are on.
- Water bubbling up at a lawn seam or a curbA line that has been cut by digging or crushed by vehicle weight.
How We Find and Fix a Line Break
We isolate the problem first. We shut down the system, run each zone alone and watch which one loses pressure or floods. On a suspected main-line leak we shut the zone valves and watch whether the meter keeps moving. That narrows the search to one pipe run before anything gets dug, and it tells us whether the break is on the pressurized main or on a lateral that only holds water when a zone is running.
Once we expose the failure we cut back to sound pipe on both sides, clean the ends and splice in new PVC with proper fittings or use compression couplings on poly. Glued joints are allowed to cure before the line is pressurized. We flush the line, run the zone, and check the repair under pressure, then replace the sod or soil so the trench does not settle into a low spot. If the surrounding pipe is brittle, we tell you before we close the trench.
What to Check Before You Call
Before you call, check your water meter with every tap and appliance off. If the dial or low-flow indicator is still moving, there is a leak somewhere, and the next question is whether it is inside the sprinkler system. Turning off the irrigation supply at the backflow assembly and watching the meter again will often answer that. Note any wet or sunken spots and which zone they sit near.
A leak does not fix itself, and a leaking line pulls soil away from the pipe and can undermine turf, paving and the trench. Because your water bill pays for every gallon that escapes, the cost of waiting usually passes the cost of the repair quickly. Let us know what you found and we will plan the visit around it.
Line Repair for Laredo Yards and Properties
In established Del Mar Hills, older systems in Del Mar A, B and C can have PVC that cracks wherever it has been disturbed. In the newer subdivisions of San Isidro and Crown Ridge above Loop 20, and in Cuatro Vientos in South Laredo, breaks are more often caused by fence, landscape or drainage work done after the system went in. We also serve Plantation, Northridge, Regency Park, McPherson Acres, Oakridge, Lakeside and Pecan Acres. In each, we trace the line before we dig, so the repair stays as small as the break.