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Old 12-26-2012, 09:41 PM   #15
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1966 24' Tradewind
Placerville , California
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Braided hose and double clamps are holding after 5 years.....and I check them regularly. Like you I don't (can't) want to re plumb everything with pex.

Neil and Lynn Holman
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Kirk Creek, Big Sur, Ca. coast.

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Old 12-28-2012, 04:36 PM   #16
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1972 Argosy 20
Snoqualmie , Washington
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After trying everything else I could think of, including Shark Bites, I decided to use the same system FreshAir used. Here's a pic. I'll pressurize the system in a month or so (other projects are in the way - read honey do list). I'm pretty confident this will hold, but as with all my plumbing projects I'll keep a careful eye on it.
Thanks for all your help and input, as usual
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Old 12-28-2012, 05:06 PM   #17
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NICE JOB. Looks good from NJ
But then again I'm 3000 mi. away when you pressurize.

Just kiddin
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Old 12-28-2012, 05:45 PM   #18
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I have replace split copper with the same technique. Have not had any leaks.
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Old 12-28-2012, 06:02 PM   #19
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I suggest you should cut a small piece of the original pile and take it with you to test fit new sweat fitting to use as adapters. You should find the fittings will have the same tolerances as the pipe. Some will be slightly larger/smaller than others.

If you do find you must use clamps and flexible pipe, slightly flair the end of the existing copper pipe to keep water pressure from pushing the flexible pipe off of the copper.
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Old 12-28-2012, 08:44 PM   #20
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I can tell you that old copper tubing of the 1970's is not the same size as copper tubing of today. Just went through this on a re-plumb of an Argosy. I did not want to remove the existing drain valves and wanted to adapt them to Pex. No such animal available.

One word of caution in using the clear braided tubing. If you check the specs it is not suitable for hot water use. Yes, it will work for awhile, but every time it gets hot water through it, it wil swell until it eventually it will fail. Usually right under the clamp.
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Old 12-28-2012, 09:09 PM   #21
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I remain convinced that with the dimensions you gave....375 and .3578 inches....the copper can easily, quickly and safely be emory papered down so as to use the standard compression bead and fitting.
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Old 12-28-2012, 09:16 PM   #22
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1988 32' Excella
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Originally Posted by Melody Ranch View Post
I remain convinced that with the dimensions you gave....375 and .3758 inches....the copper can easily, quickly and safely be emory papered down so as to use the standard compression bead and fitting.
What just because the old copper is thicker?
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Old 12-28-2012, 09:28 PM   #23
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1979 30' Argosy
Jeddo , Michigan
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flaring tool ?

You might try to compress the line a little using a 3/8 " flaring tool, just the line side and don't add the flare. Another option might be to slip a copper nut on the line and go ahead and flare it.
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Old 12-28-2012, 09:36 PM   #24
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Try refrigeration tubing. 3/8 tubing is .375 o.d. and the sweat fittings are a loose fit and .3758 should be no problem. Also the clamps and hose will hold water but without barbs it can slip right off the tubing. Repairing an in-line split helps to capture the hose but unrestrained like your application is not as secure. And yes it will get soft and swell under pressure with hot water.

Cheers, Dan

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