Pressurised water pipes with leaks produce noise. Using electroacoustic ground microphones, or listening sticks, LDS engineers can often hear this noise and identify where the water leak is. This leak detection technique works well both indoors and outdoors. LDS engineers use Sewerin's advanced digital and electroacoustic technology to successfully locate water leaks. Utilising highly sensitive electric microphones and digital instrumentation leak noises can be amplified, filtered and processed to assist in identifying a leak’s location. Correlation Leak Detection uses two identical sensors located along the pipe and are used to identify the acoustic frequency caused when a pipe is leaking. They are very accurate sound-testing devices that are best suited to larger pipe networks.
Thermal imaging cameras record light as heat and can show this in a picture. The Infrared energy (thermal) is a light we can’t see but we can sense as heat. Thermal imaging cameras identify very small differences in temperature on the surface of different materials, highlighting the warmer and the colder surface areas providing evidence of where the leak is originating. Thermal imaging can look at large areas quickly compared to other types of leak detection methods and can see major losses of heat or potential damp problems on the exterior of your property.
• Detects moisture in ceilings, flat roofs, behind walls and under floors.
• Reduces your energy consumption and saves on your heating bills
• Records exterior property heat loss and damp detection
LDS engineers use tracer gas to accurately find and locate water leaks to 1 square meter. The tracer gas used to find water leaks is a safe mixture of hydrogen and nitrogen. The tracer gas containing hydrogen, which is the lightest and smallest molecule in the atmosphere, will exit at the leak point and make its way to the surface where it is detected using gas sensitive detection probes. Hydrogen, at 5% in a balance of nitrogen has the smallest and lightest molecules so permeates all surfaces including concrete, tarmac, block paving and grass, rising quickly to the surface.