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 01-08-2008, 09:12 Post: 150037
DennisCTB

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 Compression Fittings

Once you slip the compression ring over the pipe and tighten the valve, the compression ring is solidly attached to the copper pipe.

When replacing the valve subsequently I assume it is common practice to just use the old compression ring and nut. That's what I have done in the past.

I was wondering if there is some magical way to remove an old compression ring and nut other than cutting off that section of pipe?






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 01-08-2008, 15:07 Post: 150062
Art White



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Dennis, I haven't really found any way that is worth while to remove the ring. I haven't had any leak after replacing the attached piece, if it be luck or I just haven't done it enough. Anyway you can get it to move by a chisel or die grinder would work.






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 01-09-2008, 13:46 Post: 150100
randywatson

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 Compression Fittings

no way I've found works, cut off pipe just behind the compression ring and use a new one.






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 01-09-2008, 14:21 Post: 150102
Murf

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 Compression Fittings

About the only place I have compression fittings is on the faucets, I always leave the supply line as long as possible to start with, and make a loop in the pigtail to shorten it.

That way I can cut a bit off a few times before it's too short to do anything with.

In my case the knuckle-head that built this place didn't bother to put a shut-off under a single fixture in the whole house!!! I spent a whole day cutting off pipe and installing shut-off valves after I moved in.

Now if I had to, I could just solder in a new stub above the shut-off valve and start over if the shortening from compression fittings being removed left me too short of pipe.

Best of luck.






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 01-10-2008, 09:19 Post: 150120
DennisCTB

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When I have a leaky valve I have been just replacing the valve and using the old compression ring and nut. In all cases the nuts and rings looked good and I had no leaks after reuse.

It looks like we have people doing it both ways, is it correct to think that if the compression ring does not leak after reassembly it will be fine if not the only route is to try to cut the ring with a Dremel cut off saw or cut off the pipe?

I thought cutting the ring with a Dremel cutoff would surely result in a leaky compression seal so I have never done that, has any one done that?






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 01-10-2008, 09:27 Post: 150122
kwschumm



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 Compression Fittings

Using a dremel it would probably be very easy to nick the pipe, which would likely cause leaks. Even if you could get it off the new one would probably leak, because when the old one was compressed the tubing compressed a bit too (if the tubing didn't compress the old ring would slide off much easier). You'd probably have to try to reshape the tubing and the prospects for success seem dim.






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 01-11-2008, 12:12 Post: 150157
Art White



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I think that the best bet is to cross your fingers as you have as well as I and hope they don't leak.

Ken's thoughts of the tubing being compressed some is a good bet!






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 01-23-2008, 12:06 Post: 150613
lbrown59

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Quote:
Originally Posted by Murf | view 150102
.In my case the knuckle-head that built this place didn't bother to put a shut-off under a single fixture in the whole house!!! I spent a whole day cutting off pipe and installing shut-off valves after I moved in.


I have a shut off valve on the hot and cold water lines both.
That way if I have to make a repair on one line I'm not out of water on the other line.






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 01-23-2008, 12:25 Post: 150614
lbrown59

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 Compression Fittings

A nice thing about the Shark Bite fittings is they are easy to take apart for making plumbing repairs and replacements without the problems being discussed here concerning compression fittings.

Anybody here used the Shark Bite system?






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 01-23-2008, 12:49 Post: 150617
DennisCTB

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LB,

That is interesting I had never heard of them before.






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Plumbing: Compression-Fittings

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Discussion Boards > Active Subjects > Messages as Posted > Plumbing Forum

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Art White 2 | DennisCTB 4 | kthompson 2 | kwschumm 1 | lbrown59 3 | Murf 1 | randywatson 1 |




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