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DETECTION METHODSTracer gas
In suitable pipework, a specialist tracer gas can help locate a hidden escape route.
A further way to narrow the source
The relevant section is prepared and tested by a specialist using appropriate equipment. Detected gas can provide clues when sound or thermal patterns are limited.
Ground and buildings influence the result
Gas can travel through voids, joints and porous layers before emerging. A surface indication therefore needs interpretation alongside the pipe route and other evidence.
Suitability comes first
The system needs to be appropriate for this method, with suitable access and isolation. It is one part of the investigation rather than a guarantee that every leak can be pinpointed.
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