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Compression Fittings

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DennisCTB
Join Date: Nov 1998
Posts: 2707 NorthWest NJ
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2008-01-08          150037


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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Art White
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2008-01-08          150062



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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randywatson
Join Date: Apr 2007
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2008-01-09          150100


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


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Murf
Join Date: Dec 1999
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2008-01-09          150102


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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DennisCTB
Join Date: Nov 1998
Posts: 2707 NorthWest NJ
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2008-01-10          150120


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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kwschumm
Join Date: Feb 2003
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2008-01-10          150122


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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Art White
Join Date: Jan 2000
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2008-01-11          150157



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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lbrown59
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2008-01-23          150613


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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lbrown59
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2008-01-23          150614


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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DennisCTB
Join Date: Nov 1998
Posts: 2707 NorthWest NJ
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2008-01-23          150617


LB,

That is interesting I had never heard of them before.

....


Link:   Sharke Bite Installation Guide

 
Picture Link


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kthompson
Join Date: Oct 2005
Posts: 5275 South Carolina
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2008-01-23          150625


lbrown, what can you tell us about them: price, where do you find them, any special tools and what size/type of tubing do they fit?

I have never seen them. kt ....


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lbrown59
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2008-01-23          150634


Quote:
Originally Posted by kthompson | view 150625
.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.
[QUOTE=kthompson;150625] lbrown, what can you tell us about them:
1*where do you find them,
2*any special tools
3* size/type of tubing do they fit? ,
4*price[/QUOTE]

I've never used Shark Bite products before but I'm going to give them a try shortly.
I have to replace some old steel rusty plumbing that's in areas that would be hard to reach and use wrenches in.
I am going with Shark Bite Fittings due to the fact that no wrenches are need as all you do is slip the tubing into them.
Hopefully that will make a tough job much easier.
1*I got them today at a local plumbing and electrical place that is a supplier to some of our plumbing and electrical dealers and contractors.
They also sell to the public such as my self.
2*Just one that I know of ;a small plastic gadget that is used to release the fitting if you need or want to take things apart.
They were out of them but told me they should have some of them in next week.
3* it's my understanding I/2 and 3/8 inch of any kind of plastic or copper flexible tubing / pipe in those diameters.
4*Here is the list for the 1/2'' fittings I got today.
TEE = $8.65
Straight Connector = $4.35
Reducing Connector = $5.35
== L B == ....


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kthompson
Join Date: Oct 2005
Posts: 5275 South Carolina
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2008-01-24          150645


lbrown, between here and on plex I see you plan to use the shark bite on some plex. Please give feed back on that if you will. I have a real long run that must be joined and plex was given as the best choice. Tools are like $100 for the few joints that are required. Thank you. kt ....


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DennisCTB
Join Date: Nov 1998
Posts: 2707 NorthWest NJ
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2008-01-24          150663


Quote:
Originally Posted by lbrown59 | view 150614
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.



LB,

I looked at the tools needed to take them apart and it looked like this type of connection is best used where you have good access to fiddle with it. I wonder how the plastic parts hold up as well.
....


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