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Old April 8, 2010, 09:47 PM
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Question Do you have to tighten compression fittings ALL the way?

Like the "Cap" that goes on the fitting, does it need to tighten to the point it no longer looks like it's two pieces? Or can there be a space?
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Old April 8, 2010, 09:50 PM
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There can be a space, as long as it is fairly tight your good to go.
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Old April 8, 2010, 10:06 PM
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ok thanks :D
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Old April 8, 2010, 10:07 PM
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NP!

Dont forget to post up some images when you are done.
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My knuckles are bleeding from fishing through walls a new CAT6 network cable... I found fresh, untapped electrical outlets...
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Old April 8, 2010, 10:34 PM
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I thought it was needed, bur it definitly is not. Usually just do it as tight as your hands can, then give it a wiggle.
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Old April 9, 2010, 08:52 AM
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Yea there should be a space like in the pic from supergrover, don't tighten too much and all the way, you might start cutting the tubes. I did that the first time, although I didn't go all the way, I did tighten it more than required, and the next time I took it apart for draining, you could see a good line on the tube, like someone pressed it really hard.

Like AmuseMe said, tighten as much as you can with your hand, don't use a tool.
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Old April 9, 2010, 09:52 AM
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over tightening them will crush the o-ring and then it will leak hand tight should be good enough adn yes most of the time there's a little gap because they give room for the o-ring to expand into when it gets mushed down.
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Old April 9, 2010, 10:49 AM
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He's talking about tightening the ring over the tubing onto the fitting, not the fitting into a block. And I was told a gap of around 1-3mm works best. I try to get mine around 2 millimeters, and I haven't had a compression fitting leak yet. Elbows are another story, unfortunately.
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Old April 26, 2010, 03:11 PM
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a good rule of thumb is to turn it as far as you can with your fingers. Some people use wrenches or similar tools but that's running after trouble.
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