Emergency & scheduled leak pinpointing
Experienced ATS Field Technicians are available 24 hours a day / 365 days a year to detect and pinpoint leaks. ATS has provided valuable services in over 20 states. No matter when you need us, we'll be on the road to your site quickly.
LEAK DETECTION
96% leak detection accuracy since 1979
Since 1979, ATS has maintained a 96% accuracy rate for pinpointing leaks within the first repair excavation. This is the highest documented accuracy in the business.
- Fire protection water main leaks
- Domestic hot & cold water leaks under slabs
- New water main pressure test leaks
- Baseboard hot water heating
- Municipal water main leaks
- Hot & chilled water pipelines
Comprehensive leak surveys
ATS offers a customizable leak survey program for any water main length, from 5 to over 500 miles, tailored to your leakage severity and budget. Surveys are performed during daylight with the system operational, requiring no crew assistance.
In one day, we can survey 30,000 to 60,000 lineal feet of pipe, accurately pinpointing and marking detected leaks. Leaks are classified by size and type, helping you prioritize repairs. Let ATS help you adopt a proactive stance on reducing unaccounted water loss, with pinpointing accuracy to within inches based on environmental conditions.
Principle of correlation
Principle of correlation: L = 1/2 (D-(VxTd))
In the "classic" correlation process, two sensors are deployed on pipe fittings ("dry" connection) or connected to hydrants ("wet" connection). The sensors are positioned on each side of the suspected leak position.
Noise is created by the leak as it escapes from the pipe under pressure. This noise is conducted in both directions away from the leak through the pipe wall (as minute vibrations) and through the water column (as a pressure wave).
The leak noise travels at a constant velocity (V), which depends on the material and diameter of the pipe, and arrives first at the sensor nearer the leak. The arrival time at each sensor is registered. The difference (Td) between the two arrival times, combined with knowledge of the pipe type and length, enables the leak position to be calculated by the correlator.
Depending on the environmental conditions, accuracy of leak pinpointing can be to within inches.