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Old 05-28-2008, 08:12 AM   #29
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Centralization of valves is the very reason a manifold is so nice. Especially for a trailer where you can locate it in a location with easy access and then run individual cold and/or hot lines to the point of use. Material cost for Pex and fittings is more than that of copper, but the savings are in the labor. Also, no soldering and less chance of split pipes if they aren't thoroughly drained in winter.
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Old 05-28-2008, 12:33 PM   #30
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Thanks.
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Old 01-21-2010, 10:00 AM   #31
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Originally Posted by Fyrzowt View Post
That's because you haven't had your pipes freeze yet. In that case, the PEX is better.


I like this idea too. I would suggest a drain down through the floor and belly pan so it would allow the water to exit the coach with no further damage. It (the leak) would still be quite noticable IMO.
Dave
You are so correct~!
I once had a 64 GT, that a PO forgot to winterize, and he let the copper pipes freezes over that winter.(Afterwards, I am guessing, he never had any further problems..lol) Plastic? Gawd, I could not agree more. As much as I love vintage Airstreams, the use of plastic makes my blood boil~! I am, like everyone else, finding new breakage from the aging of same, which resulted from brittle plastics.
The latest on my 84 unit is the city water overflow or drain control knob. Wouldn't you know it? It's plastic~! Do you know how hard this is going to be to replace?? What were they thinking of at Airstream??
It is no wonder why we love Airstream..lol
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Old 01-26-2010, 04:20 PM   #32
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- very informative thread...glad my unit has already been replumbed with PEX and sea tech fittings...I wish so much of it didn't live behind the vacu-formed plastic bath, but I guess that's why they sell 1/8" rivets by the gross and harbor freight makes a 30 dollar air pop riveter ;-)
I noticed that Harbor Freight riveter is now $39.Have you used one?
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Old 01-26-2010, 04:24 PM   #33
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The the new pex fitting tool looks really easy.A video on the new Flairit Pro pex is on iplumb.tv
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Old 01-26-2010, 04:24 PM   #34
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I noticed that Harbor Freight riveter is now $39.Have you used one?
I have one it works OK. It beats the heck out of putting in a bazillion rivets by hand.
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Old 01-26-2010, 04:34 PM   #35
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Lee , do you use a water manifold?
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Old 01-26-2010, 05:09 PM   #36
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No, It didn't cross my mind when I redid the plumbing. I mimicked the stock setup.
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Old 03-02-2010, 11:55 PM   #37
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I know this is my first post in a almost old thread, but as a plumber by trade I would personally never use pex. The reason it has taken so long to be passed in all of the state plumbing codes is it has been found to be carcinogenic. And up until now most states have been against it, but the pex company put enough money in enough pockets to get it passed to the plumbing code. I know most do not use their rv as their main source of drinking water. I am just saying its anothing thing to think about.

Stick to copper and common sense, the laiter is worth a heck of a lot more.
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Old 03-03-2010, 08:08 AM   #38
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I know this is my first post in a almost old thread, but as a plumber by trade I would personally never use pex. The reason it has taken so long to be passed in all of the state plumbing codes is it has been found to be carcinogenic. And up until now most states have been against it, but the pex company put enough money in enough pockets to get it passed to the plumbing code. I know most do not use their rv as their main source of drinking water. I am just saying its anothing thing to think about.

Stick to copper and common sense, the laiter is worth a heck of a lot more.
Hi gmwelder86, Can you post some information on this? I did a quick web search and did see anything to back this up. http://www.documents.dgs.ca.gov/bsc/...2010.16.08.pdf and http://www.documents.dgs.ca.gov/bsc/...%20Terrace.pdf.

I like copper, but PEX has made plumbing for the DIY types a lot more simple.
I'm not saying it isn't true... I just couldn't find any info.
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Old 03-03-2010, 10:30 PM   #39
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When I got my AS the plumbing had been redone,but not hooked up.Probably due to the 8in. crack in the fresh water tank up front.I want to redo with PEX.The lines ran in plastic down the CS to rear across back and back up the SS to the sink.Is this the regular routing?
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Old 03-04-2010, 04:49 AM   #40
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I know this is my first post in a almost old thread, but as a plumber by trade I would personally never use pex. .
I found lots of info on PEX and Prop65 in California.

One of the opinions is that plumbers in California are against PEX because it takes work away from plumbers and gives it to the DIY homeowner. And that it's the Plumbers Union putting money in the Legislatures pocket to hold it back.
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Old 03-04-2010, 05:35 AM   #41
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I agree , its a good fix .I use portable water for drinking.The toilet and shower water with reserve tank.I like the plex system.DIY is cheaper and quality better than most RV commercial maintenance repairs and bills.
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Old 03-05-2010, 06:16 AM   #42
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Quote:
Originally Posted by gmwelder86 View Post
I know this is my first post in a almost old thread, but as a plumber by trade I would personally never use pex. The reason it has taken so long to be passed in all of the state plumbing codes is it has been found to be carcinogenic. And up until now most states have been against it, but the pex company put enough money in enough pockets to get it passed to the plumbing code. I know most do not use their rv as their main source of drinking water. I am just saying its anothing thing to think about.

Stick to copper and common sense, the laiter is worth a heck of a lot more.

good morning, and with all due respect, you might be confusing the use of PEX with using PVC and CPVC for supply piping. vinyl chloride based plastics appear to carry carcinogenic risks. PEX is a polyethylene based product that does not have those same characteristics.

we've used PEX since the early 1970's when we had to bring it in from Europe ourselves, before it became generally available here, with great success, particularly in "vacation" homes, where we wanted a simple and easy to drain supply design. and yes, the material cost more, but it did the job we wanted it too much much better!

virtually any change from the use of cast iron and galvanized DWV, and copper supply has been fought tooth and nail in every jurisdiction, principally by labor, as a labor issue.

these days, faced with replumbing an airstream or a house, the decision for PEX is just about a no-brainer....

best,
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