SF6 leak detection is a mechanical process in which SF6 gas is injected into the pipeline.  A probing crew must probe holes along the route of the pipeline to allow a gathering point for the SF6.  A technician then walks the right of way with a mechanical tester which will alert once the SF6 is detected.  

 

K-9 leak detection is less labor intensive as dogs do not require holes to be probed into the ground. They are able to accurately locate leaks at a faster pace, which is more cost effective. K-9 leak detection utilizes a minimum of 2 dogs to detect any leaks during the testing process. They are trained to detect an odorant that is non-toxic, non-corrosive, non-flammable and requires no disposal. This odorant is also colorless and odorless to humans, but dogs have over 220 million olfactory receptors that give them the ability to detect it. Once the odorant is injected into the pipeline and an appropriate amount of time passes, our K-9 team will deploy to begin the leak detection process.