I have a fireplace and the gas line was d/c up in the attic going to the fireplace. I removed the cut gas pipe and rethreaded on the cut end and pressured the gas line with 10psi of air. The gauge showed I was losing air so I went downstairs and soaped the Blue Flame gas valve that is located inside the brick next to the fireplace opening. I noticed bubbles coming from around the stem. I do not think the stem packing can be replace unlike a water faucet stem. My question does anyone know if I can replace the stem packing or an easy way to replace the valve short of tearing out the brick around of the valve. I have brick on all sides of the valve including the back. My intentions were to install a vent free vanguard fire place gas log set. I would appreciate any suggestions or comments!