Irrigation Main Leaks
Irrigation Mainline Leak Detection
A mainline leak can drain a system overnight while the surface stays dry. Acoustic listening and zone-by-zone isolation narrow the loss to metres before any ground is opened.
Symptoms we're called for
- The system loses pressure overnight or the pump cycles without a zone running
- A summer water bill climbs with no change to the schedule
- A soggy strip, sinkhole or unusually green line across the lawn
- A hiss or running-water sound at a valve box or backflow assembly
Property types
- Residential irrigation mains and service lines
- Strata and commercial landscaped grounds
- Sports fields, parks and school grounds (by arrangement)
Methods used
- Acoustic listening on valves, backflow assemblies and exposed fittings
- Correlation along the suspected run to convert sound into a position
- Zone isolation and pressure-decay testing to confirm the loss
- Tracer gas and line tracing where soil and depth limit acoustics
Limitations, stated plainly
- We locate and document; repairs are performed by licensed irrigation contractors
- Accuracy varies with soil type, depth, pipe material and background noise
- Controller and valve faults can mimic mainline leaks and are diagnosed separately
What you receive
- The located position marked on the surface and in the report
- Pressure and isolation data supporting the finding
- Photographs and a dig-ready summary for the repairing contractor
Next steps
- Have the licensed irrigation contractor repair the located section
- Confirm with a pressure test after repair
- Book a seasonal check to catch new losses early