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Old 09-11-2008, 05:56 AM   #15
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Good advice. I also redid everything with Pex. I used 90% crimp fittings, and only used the quick connects where the crimping tool would not fit.

I used coiled tubing and didn't have a problem. If needed you can straighten the tubing with a heat gun. Use the gray snap-in plastic clips about every two feet to hold the tubing in place.

Plan your runs with low point drains. You might come north some day and need to winterize.
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Old 09-11-2008, 06:44 AM   #16
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62Overlander...copper is about 1/4 the cost of PEX? Not in my neighborhood. Going back with copper would cost me almost 1/3 to double what PEX will.

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Old 09-11-2008, 06:45 AM   #17
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We replace all our 39 year old copper with red, white & blue pex. We have a big pile of copper we are going to cash in and go to Red Lobster to eat. I know with the copper out the weight is probably less. I guess we will have to wait and see if the Pex will last 39 years.
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Old 09-11-2008, 09:39 AM   #18
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I think the biggest benefit to Pex is it's freeze resistance.. I thought about replacing my copper lines, but as there is nothing wrong with them an keeping them... I just won't let them freeze....
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Old 09-11-2008, 12:08 PM   #19
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Andrew,

You can see PEX used in my complete renewal of a 1976 Argosy here:

http://www.airforums.com/forums/f227...e-18448-8.html

So far, no leaks. Which is not to say it will never leak - but I hope it wonít.

PEX is very easy to work with. I was able to do it myself which wouldnít have been the case with copper.


Sergei
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Old 09-11-2008, 06:45 PM   #20
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I think the biggest benefit to Pex is it's freeze resistance.. I thought about replacing my copper lines, but as there is nothing wrong with them an keeping them... I just won't let them freeze....
Depends on the overall condition and if you are doing a full interior rework or not. I am and 30+ year old copper can pinhole and leak with little warning. Most of my fittings are showing signs of corrosion, so it it easier to do it now rather than later...after the interior has been reinstalled!

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Old 09-11-2008, 06:51 PM   #21
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That is true.. I'm doing a little at a time so I can still use it so it would be hard for me too.. But I am replaceing some of the copper as i go... Have a bunch left over from a job.... so save a little $$$..
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Old 09-11-2008, 10:17 PM   #22
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Sergei,

Thanks for the pics. I saw these fittings today at a Lowe's. Thanks to everyone for their opinions.

My blog is Restoration of 1964 Airstream Globe Trotter

Andrew
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Old 09-12-2008, 04:49 PM   #23
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Andrew,

Just when you've heard enough. I agree PEX is the way to go. I'd also suggest considering stainless flex hoses in strategic locations. The water heater becomes easy to drain and bypass for winterization when you pipe the last 18 - 24" with flex hoses. By the way, I used the quick clips to avoid buying mulitiple tools for crimping. Ended up, it was all in one size tubing anyway. And, the factory uses white for cold and red for hot, if you want to take it that far.

Best of luck,

Roy
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Old 09-12-2008, 07:48 PM   #24
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I have seen a product here in Canada called PexAlPex which is two layers of Pex with a layer of Aluminum sandwiched in between. The beauty of this product is that you can bend it to whatever shape you want and it will stay there. Therefore you can form a single piece of pipe from one location to the other without adding any fittings what so ever.
That means less chances for joint failures.
My own trailer(a 94) has factory installed pex with copper 90's etc. crimp connected.
Amazing how many fittings there are.
Still I have not had any failures.
Al
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Old 09-13-2008, 05:24 AM   #25
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I have seen a product here in Canada called PexAlPex
Al,

They have that here in the US too. The product seems to be made just for a guy named Al.

I thought about using it but I'm concerned that the Aluminum layer (which is included to prevent oxygen absorption) would split when frozen.
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Old 09-13-2008, 09:53 AM   #26
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I replaced my 67's copper with red and blue pex with Shark-bite fittings.
So far, so good...
Fittings are a bit pricey..
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