In this video, join our expert technician, Daniel, from 1300 FINDLEAK in Wheelers Hill, Melbourne, as he demonstrates the step-by-step process of locating an underground water leak. Today, we are on-site to perform leak detection and find a mains water burst pipe.

The process begins by isolating toilets, appliances, and the hot water system (HWS) to narrow down potential areas of the leak. All toilets, appliances, and the HWS were successfully isolated without any signs of leakage.

Next, we check the Evaporative Cooler (Evap), gray water, and solar systems for any signs of leaks. Thankfully, no leaks were detected in these systems, and they were left operational.

The main water supply system is then tested through a hot/cold mains water pressure test, which lasts for 10 minutes. The test helps us assess the integrity of the water supply system. During this test, we discovered a mains cold failure.

To gain a comprehensive understanding of the plumbing system layout, we use a line locator to map out the entire pipe network within the property. This mapping process aids us in identifying potential areas of concern.

For accurate pinpointing of the burst water pipe, we charge the pipe with tracer gas and conduct acoustic listening on all exposed line taps. Through acoustic listening, we narrow down potential leak areas. In instances where the leak is not audible, we use a tracer gas detector to further pinpoint the leak's location.

Finally, after thorough testing and detection procedures, we successfully locate the burst water pipe in the front of the house, under a tree. Roots from the tree have likely caused the break in the pipe.