Weird thing last night, in front of my duplex they are rebuilding the street, and for the third time this summer they hit a gas line and had to shut off the gas on the street to fix it. One tenant called and said her furnace wouldn't work, so I went down and thought maybe she was just getting air from the lines, so I removed the cap off of the drip leg, all black iron piping, to purge the gas line. When I removed the cap, there was a thin layer of very black thick oily material in the cap, it smelled very strong of the odorizer they put into natural gas for safety, I'm wondering does anyone know if the odorizer can precipitate from the gas over time? The other furnace has only been in for 2 years, I checked it and there was no black residue in that cap. After purging the gas line, the furnace worked fine.
No announcement yet.
Nautral Gas Line