I'm on my third ng hose to connect my smoker to my natural gas pipe from the house. I have installed a needle valve and everything is nice and tight and leak checked...except..the swivel connector/adaptor at the end of the hose has a slight leak when I have the needle valve closed. As soon as I open the valve, the leak stops. Obviously has something to do with pressure, but all three of the hoses I've tried leak at that factory installed swivel connector on the hose - no where else. Anything I can or should do? Thanks. ( BTW the smoker Masterbuilt 30 works fine.) Solved - had needle valve turned the wrong way Thanks anyway.