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Old 07-11-2008, 12:47 PM   #1
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PEX vs. PVC - Which on for fresh water

I'm getting ready to set-up my fresh water system and I wanted to ask if sch 40 PVC 1/2" tubes and fittings would be acceptable for it versus copper.

I know folks like PEX but I'm curious about using PVC instead.

D
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Old 07-11-2008, 01:00 PM   #2
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We are using PEX...it's more flexible and I feel better suited for the movement in an Airstream. Our old plumbing in our '64 has some plastic fittings, but they become brittle over time and we have had to repair a couple of them. One was an elbow on the floor in a closet When we first got the trailer from a PO, it was broken - apparently from something heavy landing on top of it while traveling down the road. If you do decide to use plastic, it should be protected to prevent this sort of thing from happening...

Just my 2-cents.

Shari
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Old 07-11-2008, 02:15 PM   #3
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Quote:
Originally Posted by muddy_hollow View Post
I know folks like PEX but I'm curious about using PVC instead.
PVC supply lines will make the water taste like plastic.

For my GT I'm using PEX and have chosen to buy the crimper and the barbed fittings. For a fresh install, I think it is the best way to go.
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Old 07-11-2008, 04:02 PM   #4
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Pex!

http://www.airforums.com/forums/f443...pex-29742.html

http://www.airforums.com/forums/f443...tic-29318.html

** http://www.airforums.com/forums/f443...?highlight=PVC

http://www.airforums.com/forums/f163...ded-22036.html

*** http://www.airforums.com/forums/f443...aks-22146.html

http://www.airforums.com/forums/f163...ent-17815.html
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Old 07-11-2008, 04:05 PM   #5
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Quote:
Originally Posted by byamcaravanner View Post
PVC supply lines will make the water taste like plastic.
Good point...our supply in Maxwell is all copper, just some of the drains are PVC - some of them are brittle.

Shari
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Old 07-11-2008, 04:49 PM   #6
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I would use pex pipe.
One advantage could be not having a pipe burst if you fail to get all the water out.
The material gets stronger the colder it is.
Al
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Old 07-11-2008, 05:10 PM   #7
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Interesting.

Quote:
Originally Posted by byamcaravanner View Post
PVC supply lines will make the water taste like plastic. ...
I replace all the galvanized pipe in my first house with CPVC and never noticed a taste issue.

Last year, I plumbed 110 feet of PVC out to my Overlander's full-hook-up pad, and have never noticed a plastic taste.

I am interested to know if anyone else has noticed a plastic taste with PVC.

Tom
p.s. FWIW, I went all-copper in my refurb.
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Old 07-11-2008, 06:25 PM   #8
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I've never heard mention of the taste factor. PVC is used for cold water lines outside of the house. CPVC is used for both hot and cold inside the house. My home was re plumbed with CPVC and my trailer is PEX.
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Old 07-11-2008, 07:51 PM   #9
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Even with the effects of global warming, I wouldn't use PVC anywhere the temperature could go below 30F.
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