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Old 05-17-2010, 12:32 PM   #1
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Faucet supply line types.


Plumbing isn't my forte but I'm about to put a new bathroom sink faucet in for my grandmother this afternoon. My father has bought new PEX supply lines for it. These type of lines have always been problematic for me in the past. They tend to develop leaks near the shut offs on my own faucets. I'm wondering if there is a better option to use. I see tons of different types. I'm leaning toward a braided PVC but can't find much info on it. I've heard the braided steel may look good but tend to have cheap tubing inside that doesn't stand the test of time. Any input is appreciated.

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Old 05-17-2010, 12:58 PM   #2
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Faucet supply line types.


Could your problems with PEX be that you are over-tightening the compression nuts on the shutoffs?
Also, make sure you're not putting too tight a bend in the PEX.

I replaced a kitchen faucet set a year ago that has PEX tubing running directly into the fixture, so I had no choice to use it or not. I have not had any trouble at all. Just pay close attention to install instructions.

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Old 05-17-2010, 01:45 PM   #3
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Faucet supply line types.


At the compression end (valve) of the PEX, be sure to use a plastic ferrule and not a brass ferrule.
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Old 05-17-2010, 03:31 PM   #4
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Faucet supply line types.


Yeah we've used a plastic ferrule and I made sure there was almost no bend in the line last time. Knowing my father though, over tightening could very well be an issue.
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Old 05-17-2010, 08:33 PM   #5
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Faucet supply line types.


I used metal ferrules on the PEX on my kitchen install a year ago, and no leaks yet.
I plan to replace them with plastic ones when I get around to replacing the shutoffs. I've had the new ball valves waiting for installation, but haven't got to it yet.

That said; I would not recommend using the metal ferrules with PEX. It can cut into the tube and cause a leak.

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