Commercial Under Slab Leak Detection & Copper Water Pipe Repair – Deception Bay Shopping Centre
AFTER
BEFOREThe Problem
DrainSpy Brisbane was contacted by the management of a busy shopping centre in Deception Bay after unusually high water consumption began affecting operating costs. Despite extensive visual inspections by onsite maintenance staff, no leaking taps, burst pipes or visible signs of water loss could be found.
Water usage records showed the property was losing approximately 6,000 litres of water every month, indicating a concealed leak somewhere within the underground water supply system.
Because the leak wasn't surfacing above ground, it was suspected to be beneath the reinforced concrete slab servicing the shopping centre. Hidden under-slab leaks can remain undetected for months or even years, quietly wasting water while washing away supporting soils beneath buildings. If ignored, they can eventually lead to ground movement, slab settlement, expensive structural repairs and ongoing increases in water costs.
The shopping centre required a specialist leak detection company capable of accurately locating the leak without destroying large sections of concrete or disrupting tenants.
Our investigation identified the issue as a concealed under-slab copper water pipe leak requiring advanced diagnostic equipment to locate precisely.
✔ Water bills increasing unexpectedly.
✔ Approximately 6,000 litres of water being lost every month.
✔ No visible leaks above ground.
✔ Leak suspected beneath the concrete slab.
✔ Multiple commercial tenancies requiring minimal disruption.
✔ Potential structural risks if left unrepaired.
✔ Needed accurate leak detection before excavation.
✔ Required specialist acoustic leak detection technology.
The Solution
DrainSpy Brisbane carried out a comprehensive commercial leak detection investigation using professional acoustic leak detection equipment, electronic pipe tracing technology and pressure testing.
Rather than relying on destructive exploratory excavation, our technicians systematically tested the water supply network to narrow the search area before deploying highly sensitive acoustic listening equipment.
Pressure testing confirmed that water was escaping from the underground copper water service beneath the shopping centre slab. Using professional acoustic leak detection equipment, we listened for the unique sound frequencies produced by pressurised water escaping from the damaged pipe.
By taking multiple readings throughout the property and comparing sound intensity, we accurately pinpointed the leak's location beneath the concrete without unnecessary excavation.
This non-invasive investigation saved the customer significant time, reduced repair costs and minimised disruption to businesses operating within the shopping centre.
Our investigation included:
✔ Commercial water leak assessment.
✔ Review of abnormal water consumption.
✔ Isolation of water supply sections.
✔ Water pressure testing.
✔ Advanced acoustic leak detection.
✔ Electronic sonar listening equipment.
✔ Underground pipe tracing.
✔ Multiple acoustic listening points.
✔ Pinpoint location marking.
✔ Repair recommendations.
Equipment Used
Professional leak detection requires specialist equipment capable of locating hidden underground water leaks with exceptional accuracy. Equipment used during this investigation included: ✔ Professional acoustic leak detection equipment. ✔ Electronic sonar ground listening devices. ✔ Commercial water pressure testing equipment. ✔ Pipe tracing equipment. ✔ Underground utility locator. ✔ Digital pressure gauges. ✔ Leak detection markers. ✔ Concrete scanning equipment. ✔ Commercial plumbing diagnostic tools. ✔ Copper pipe repair equipment. Using advanced leak detection technology allowed us to locate the hidden leak without unnecessary excavation, reducing repair costs and significantly minimising disruption to the shopping centre.
The Outcome
Once the leak had been accurately located beneath the concrete slab, our technicians carefully marked the repair location before commencing excavation.
Only a small section of concrete directly above the leak required cutting, avoiding unnecessary demolition throughout the shopping centre.
After exposing the underground pipework, we identified the damaged section of copper water pipe responsible for the ongoing water loss. The defective section was professionally repaired before restoring the water supply and pressure testing the system to verify a successful repair.
The leak was completely eliminated, immediately stopping the loss of approximately 6,000 litres of water every month.
The customer benefited from:
✔ Hidden leak accurately located.
✔ Minimal concrete cutting.
✔ Damaged copper water pipe professionally repaired.
✔ Water supply fully restored.
✔ Successful post-repair pressure testing.
✔ Approximately 6,000 litres of water saved every month.
✔ Lower ongoing water costs.
✔ Minimal disruption to shopping centre tenants.
✔ Reduced excavation costs.
✔ Confidence that the leak had been permanently repaired.
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