[Shop-talk] Gas leak repair/test

[Dwade Reinsch]

I've had a small gas leak in the house we moved out of in January.  I called
to get it checked, guy's sniffer confirmed our noses and he said, "get it
repaired and I'll return and re-check."  So when I went by after work, he has
put a locked cover over the main valve.  I'm going to do the repair, but I was
planning on turning the gas back on and checking for leaks before I called
him.
 
Any suggestions about how to check a locked up gas line?
 
Thanks in
advance!
 
Dwade