How does it work?

The system is inserted into a live transmission main through any tap 2" or greater in diameter and is completely safe for all potable water systems. In operation, the probe is carried along the pipe by the flow of water. The system locates leaks as small as 0.25 gallons/hr, in real time, through identification of the distinctive acoustic signals generated by leaks in the pipe wall, the joints or steel welds.

Once a leak has been detected, the sensor head can be stopped at the precise position of the leak. Its location within the main can be identified from the surface and accurately marked for subsequent excavation and repair. Consequently, operators can also use Sahara to accurately map the course of a pipeline.

Depending on the pipe configuration, lengths up to 6,000' can be surveyed with a single insertion. Inspections can be carried out in mains with a diameter of at least 12"; there is no limit on the maximum diameter.

Sahara locates leaks through identification of the distinctive acoustic signals generated by leaks in the pipe wall, the joints or steel welds. The magnitude of the leaks is estimated by quantification of the acoustic signal recorded by the sensor.

By identifying individual leaks water transmission pipeline operators can:

• Establish the structural integrity of water transmission main;
• Reduce non revenue water;
• Identify the location of leaks that are causing a pipeline to fail a pressure test;
• Prioritize capital expenditures by enacting a selective repair and replacement program based on accurate infrastructure condition data;
• Accurately value pipeline assets, thereby complying with legislative requirements.