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Old 07-10-2021, 12:53 PM   #1
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Leak under bathroom sink

We have a 2016 jayco bh. New to us! We have a leak under the bathroom sink. Anyone else had this issue? Itís the top white pipe thatís leaking around the area of the black piece by the clamp
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Old 07-10-2021, 01:00 PM   #2
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There is an inexpensive tool available form any store that carries PEX plumbing hardware and supplies.

You may be able to just re-tension the clamp or remove and replace it with a new clamp.
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Old 07-10-2021, 01:29 PM   #3
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You might try just tightening the black fitting. I’ve had small leaks on those and they just weren’t tightened enough. Simpler than messing with the clamp if it solves it.
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Old 07-10-2021, 01:34 PM   #4
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So those black pieces tighten? So hard to get in there and see. Tight spot!
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Old 07-10-2021, 01:35 PM   #5
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I’ll give those tools a shot. Thanks for the name so I know when I get there
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Old 07-10-2021, 01:38 PM   #6
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Quote:
Originally Posted by Campweiler View Post
So those black pieces tighten? So hard to get in there and see. Tight spot!
It should thread on ó just hand tighten. Definitely hard to reach.
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Old 07-10-2021, 01:53 PM   #7
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That's the hot water side, and they do need a little tightening after the hot water softens the sealing cone up a bit.
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Old 07-10-2021, 02:02 PM   #8
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You will need a Basin Wrench unless you have tiny hands.
https://www.lowes.com/pd/IRWIN-11-in...nch/1000668439
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Old 07-11-2021, 07:04 AM   #9
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I had to tighten similar fittings on my outdoor kitchen faucet and hot water heater because of leakage.
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Old 07-11-2021, 07:11 AM   #10
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Quote:
Originally Posted by norty1 View Post
You will need a Basin Wrench unless you have tiny hands.
https://www.lowes.com/pd/IRWIN-11-in...nch/1000668439
X2 ! Easy fix with the right tool.
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Old 07-11-2021, 08:43 AM   #11
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I've worked with pex fittings for about 25yrs now. The crimp rings don't usually leak unless they are disturbed. This could be a simple bump of the line that you don't recall doing however or travel day bumps. I agree with JFlightRisk the hot side has more potential for leakage do to the heat expansion on the seal a the the fitting connection to the faucet. The cone washer/gaskets tend to get a shape to them over time and harden. I would suggest starting there snugging it up( Gl from the looks of that picture). I would also suggest checking the local hardware for these fittings particularly the cone gasket and getting a package just to have on hand. There are a few variations just pick up a few they are cheap enough. GL
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Old 07-11-2021, 11:13 AM   #12
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A new Cone Washer and retighten would probably fix it. I just changed a faucet assembly and had a leak at first because they barely gave enough Pex on one side. Had to end up stretching it toward the faucet while tightening. Yours looks just like mine. I carry several extras now, since I saw how it is made. Probably not the crimp clamp.
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