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Hi Everyone,

Just got a new dishwasher, and I am trying to install it. Electrical went ok. Connecting the hose to the pipe was successful. It's connecting the copper tubing to the elbow that is giving me the most problems. I had to get a new elbow because the old one looked too corroded. I attached the elbow, and i tried to tighten it as much as i can, and there's a little bit of threading that shows. I attached the tubing to the elbow, and turned on the water, and it started to leak about 1 drip every 10 seconds. Went to Home Depot and they said gave me a compression sleeve to put on. The problem is that there's a nut attached to the copper tubing that will not come off. Putting the sleeve on the tube won't even let me get the nut far enough to begin screwing it into the elbow.
I'm at my wits end, and I have no idea what to do next. I'm so tempted to call a plumber to just get piece of mind, but at $130 dollars, I don't think its worth it. ANy help would be greatly appreciated. I've atttached a picture to show what i'm talking about.
 

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If the nut won't come off the tube then you have some sort of ferrule at the end of the tube, I expect? Surprised you can get the compression sleeve on at all. I would cut off the end of the copper tube so you have a clean end, get a new compression sleeve and slip it on after the nut. Then the nut should reach the threads. It's important in these instances to work with clean fittings. Scratch or score the sleeve or the tubing and you're asking for leaks.
 
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