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Old 03-01-2015, 01:03 AM   #1
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Pex tubing question

So I was preparing for de winterizing the camper today--I flipped all my winterizing valves back over to their "service" positions. Here's the issue: when I flipped one of the valves on the HWH, the whole valve "spun" on the pex tubing. Like, here's a section of pex, then the valve with the metal pex clamp, and then another section of pex with the clamp, and the whole valve/fitting can spin on the 2 pieces of pex. Is this normal, or is this sucker gonna leak like a sieve when I run water through it? I've never assembled anything with pex tubing, so I'm not sure how it supposed to act.
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Old 03-01-2015, 08:53 AM   #2
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Did it leak before you went to winterize it?
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Old 03-01-2015, 09:19 AM   #3
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Could you reach the ftting with a pair loppers or hedge clippers? Meaning that if you can reach it you can clamp it then go ahead a get a pex tool and new clamps. See my misc album for what I did. I am not plumber by trade but stick with the crimp style clamps that look like a wedding band (1/2" apollo pro crimp APXCR12LT) and brass not plastic fitting (like apollo APXE121210K).

It is very very easy to work with, the only thing is that once a joint is made it cannot be salvaged. Think about how pvc pipe is scraficed in length when you replace something.
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Old 03-01-2015, 09:41 AM   #4
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I've used the shark bites in tight places on our last 5th wheel

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Old 03-01-2015, 09:48 AM   #5
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The Shark Bites work amazingly well. I had to some mods to the plumbing when I removed the onboard water filter, and it was a real tight spot to work in, so made getting pex tools in there difficult. RV tech I spoke to said to use the Shark Bites, thats all he uses now when doing plumbing repairs, quick and simple, and they hold really well.
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Old 03-01-2015, 09:49 AM   #6
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Quote:
Originally Posted by Taranwanderer View Post
So I was preparing for de winterizing the camper today--I flipped all my winterizing valves back over to their "service" positions. Here's the issue: when I flipped one of the valves on the HWH, the whole valve "spun" on the pex tubing. Like, here's a section of pex, then the valve with the metal pex clamp, and then another section of pex with the clamp, and the whole valve/fitting can spin on the 2 pieces of pex. Is this normal, or is this sucker gonna leak like a sieve when I run water through it? I've never assembled anything with pex tubing, so I'm not sure how it supposed to act.
As crazy as it sounds, its normal. According to a plumber I know, they spin a little more when cold, but shouldn't leak. Warmer temps tighten them up. Hope I answered your question.
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Old 03-01-2015, 09:51 AM   #7
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As crazy as it sounds, its normal. According to a plumber I know, they spin a little more when cold, but shouldn't leak. Warmer temps tighten them up.
Interesting! Thats why i was asking if they leaked before he went to winterize it.
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Old 03-01-2015, 09:56 AM   #8
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I always check to see if the system will hold pressure using my air compressor set around 40psi. I don't have anything to clean up if air leaks out.
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Old 03-01-2015, 09:58 AM   #9
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To be on the (Safe/Dry) side use (Regulated AIR) instead of WATER for your Test! Yes some Pex fitting turn and do Not leak,but some DO leak? Youroo!!
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Old 03-01-2015, 10:30 AM   #10
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The pex in my rv and my home will spin and I have never had a leak.
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