In Reply to: Re: New gas leak posted by Frank (WNY) on June 09, 2020 at 08:10:22:
Sometimes flared line fittings just won't quit leaking. Since they're often made of softer metals continued tightening will eventually break something.
I know they say we should never do this, but in the real world where the machine has to get its work done, we develop techniques that annoy perfectionists.
Shut off the valve, unscrew the flare nut on the line, wrap a few turns of Teflon tape around the line, carefully thread the nut back in. Tighten snugly and check to see that your leak has stopped.