So, I think I know the answer, but I want to get some confirmation. Awhile back I had to “deconstruct” one of my gas lines/manifolds to rob some parts. I have a gas line that’s been connected to my manifold on one end, but is an open MFL nut on the other end. This manifold has also been unhooked from CO2. Is this gas line safe to use for pressure transfer or kegging?