Most leaks on pressurized ...
Published by Mark Beatty, Employee at Utility Technologies, LLC
Most leaks on pressurized pipe can be located acoustically. A typical leak noise correlator could locate the leak. With microphones it would work for a shorter distance between sensors like up to 1500' for metal pipe, or about 200' for plastic which would limit you to ponds or river crossings. For longer distances you can correlate with hydrophones sometimes thousands of feet or more.
If you can turn off the water flow, tracergas would work. The Sewerin VT460 unit uses a hydrogen/nitrogen gas mix injected into the pipe. A gas sniffer then detects the hydrogen molecules directly above the leak.
If you can turn off the water flow, tracergas would work. The Sewerin VT460 unit uses a hydrogen/nitrogen gas mix injected into the pipe. A gas sniffer then detects the hydrogen molecules directly above the leak.