11:24AM | 03/02/13
Hi Folks,

I am getting ready to buy and install a Filtrete brand under-sink water filter, and in anticipation of this task I looked at the water lines under the sink just now. I immediately noticed that the cold water line is a stiff 1980s-era ringed-looking silver type of line (the type that looks like a trachea/windpipe) and I forsee it easily cracking when I start moving it around.

Therefore I am considering replacing that line completely with a length of PEX as part of this job.

My questions are:

1) Is my suspicion on target? Is this line likely to rupture if I start flexing it as the filter installation will no doubt require?

2) Is there anything in particular I would need to know to do that as a plumbing newbie?

3) Videos I've seen about PEX don't make it look like it's very flexible either with regard to doing "C" or "U" curves. Am I wrong about that?

thanks heaps,


04:14PM | 03/02/13
Member Since: 07/22/04
661 lifetime posts
I usually use braided stainless steel or nylon flexible supply lines for that. It's a good compromise of reliability and ease of use. It's good and flexible, won't kink, and easy to work with as opposed to the chrome plated copper.


04:22PM | 03/02/13
Member Since: 07/22/04
661 lifetime posts
You're going to remove that line anyway and use the lines that come with the filter.


04:26PM | 03/02/13
Member Since: 07/22/04
661 lifetime posts
There's a you tube video that shows you what I trying to say.
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