Leak detection

Once you have established that you have a leak on your property and it is your responsibility to repair it is sometimes more difficult to locate that leak. The hardest leaks to find, of course, are those that do not surface. Water will take the path of least resistance. It can follow the gravel bedding around the line for miles, find a broken sewer line to duck into, occur in the middle of a stream, or just disappear into a fracture in the earth. All acoustic leak detection methods are based on the premise that normal water passage through pipe work takes place noiselessly. When water passage is disturbed a noise is created. Causes can include partial pipe blockages, sudden changes in pipe diameter, abrupt changes in pipe direction, pumps or meters installed in the pipe work, consumer usage or pipe work damage. Pipe work damage can include holes, cracks or splits, complete pipe work rupture, leaking joints or leaking valves.

 

Careful application of leak detection techniques will eliminate detected noises generated by poor pipe work design or consumer usage and to identify leakage due to pipe work damage.The strength and clarity of noise generated by leaks will be affected by the water pressure, the size and shape of the orifice allowing leakage, the type of ground material around the pipe work, the type of ground cover over the pipe, the diameter, wall thickness & material of the pipe work and the quantity of water leaking. Basically, there will be less noise to detect if the pipe work is plastic, bedded in soft ground and deeper than 750mm. At Essential Water Services Ltd, we provide a service to pinpoint leaks and undertake the necessary repairs. This is achieved through a number of processes with the help of the latest leak detection equipment: Xmic Acoustic listening equipment and correlator.

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