In article tbim5c1betiosmlmoel2v5q9lpftniv67v@
4ax.com, says...

On Wed, 21 Dec 2016 20:40:14 -0500, wrote:



So, what about that PEX pipe? How does that hold up in sunlight?


Normal PEX is not UV resistant.
There exists specialty PEX that, apparently, is
http://www.seymour-ind.ca/displayProduct48.php
Why not just use an old garden hose ?
John T.

This is the reason I posted this question in the first place. To learn
the pros and cons of what material will work best. Thanks to you, I can
see where the standard PEX will not work real well. Buying that special
stuff will probably not be feasible, or cheap, and I'm guessing I'd have
to buy a lot more than I need.

Their 2014 PDF shows 1/2" at $.76 per foot and 3/4" at $1.38 per foot.
But it dont say roll sizes, or shipping (from Canada)....

I think I am going to just use a garden hose. Even if it only lasts a
few years, hoses are cheap enough and wont be hard to replace.

You might want to take a look at
https://www.amazon.com/exec/obidos/ASIN/B01ABON
AS8/camco0e-20/ref=nosim.

Note that AL-PEX is not freeze resistant, it's
the regular kind that is freeze resistant.