Acoustic Leak Detection
Acoustic leak detection is a method used to locate water leaks that are not visible from the surface.
It works by listening for the sound that water makes as it escapes from a pipe under pressure.
When water leaks from a pressurised pipe, it creates a distinctive sound as it forces its way through the pipe wall or joint.
This sound travels through the surrounding soil, concrete or building materials and can be detected using specialist acoustic equipment.
What Acoustic Equipment Can Find
Acoustic detection equipment is particularly useful for locating leaks in underground pipes, pipes running beneath concrete slabs, and pipes buried under driveways, paths and garden areas.
The equipment picks up vibrations and sounds that are not audible to the human ear.
By moving the sensor across the surface above the pipe, it becomes possible to identify the location where the sound is strongest — which indicates the likely source of the leak.
The Limitations of Acoustic Detection
Acoustic detection works best on pressurised water supply pipes.
It is less effective on drain pipes or pipes carrying water at low pressure, as the escaping water does not produce the same level of sound.
Soil type, pipe depth, and surrounding noise levels can also affect the accuracy of acoustic detection.
In some situations, additional investigation methods may be needed to confirm the exact location of the leak.
Acoustic Detection as Part of a Full Investigation
Acoustic detection is one of several tools used during a water leak investigation.
It works best when combined with a thorough understanding of how the property's pipe system is laid out and how water is likely travelling through the structure.
At Dave Wilkinson Water Leak Detection, acoustic equipment is used as part of a structured investigation process — helping to accurately locate underground pipe leaks across Melbourne's Bayside, Kingston, Stonnington, Mornington Peninsula, Glen Eira, Monash, Boroondara and Greater Dandenong.
Water leak detection pricing starts from $500 + GST with no call out fee and fixed pricing with no hidden costs. Same day service available.
For professional water leak detection in Melbourne, contact Dave Wilkinson on
0439 419 007 or info@dwleaks.com.au