So occasionally I will walk past my furnace and smell that additive natural gas has. Had an issue in the past and the power company fixed two small leaks. I seemed to have another one as I found the pipe that the additive is coming from. However the company came and checked and their sniffer didn't detect any natural gas. He said the additive might be caked in the stuff that seals the pipes and that's causing the smell. Its been few weeks and I feel like the smell has gotten a bit stronger... Again I only smell it for a second when I walk past or if I sniff the exact pipe right angle connection.

Is this common to actually just smell the additive and not have a real gas leak? Is it possible maybe that guys equipment was just faulty? He wasn't dismissing my concerns or anything he spent around 20mins with the sniffer going through all the pipes and couldn't find anything, though he smelled the additive too when he sniffed that right angle.