Originally posted by bsrosell
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I would imagine that the center of your flare is bottoming out on the male end of the fitting before the outer edges seat, giving a poor seal? Think of trying to fit a small diameter washer on a cone, it would sit high on the cone, using a larger diameter washer, allows it to sit lower on the cone. Maybe your small hole is limiting full contact with the male flare fitting. It's probably why you are rounding out the nuts, in effect trying to stretch the hole. I hope that makes sense. Other than that I am perplexed.
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