Questions about replacing water line to kitchen sink

[Plumb Green]

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 foresee 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,
AP

[pushkins]

As the saying goes, a picture is worth a thousand words, I'm not sure what the pipe your referring to is being used in a kitchen scenario, most often they are used in built in bathroom tubs.
Anyway, they are not meant to be manipulated around a lot, kind of shaped to be what they need and then not touched again, you would probably find it very hard to somehow attach your filter system to this.
I personally am a fan of PEX, it's flexibility in use is great.
Have you considered running a new flexible line from the shut off valve to the filter then another flexible line from the filter to the faucet removing the existing line ?

[Plumb Green]

As the saying goes, a picture is worth a thousand words, I'm not sure what the pipe your referring to is being used in a kitchen scenario, most often they are used in built in bathroom tubs.
Anyway, they are not meant to be manipulated around a lot, kind of shaped to be what they need and then not touched again, you would probably find it very hard to somehow attach your filter system to this.
I personally am a fan of PEX, it's flexibility in use is great.
Have you considered running a new flexible line from the shut off valve to the filter then another flexible line from the filter to the faucet removing the existing line ?

Hi pushkins, thanks for your reply. Combining your reply with additional web research I think I now have all the info I needed.

thanks,
PG