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.



Perhaps the 3/4 inch size would suit your purpose -
and could be free if you locate someone, like me,
who has discarded it donated to thrift store
because it's heavy & awkward for everyday use.
I certainly don't need the additional size - over 5/8 -
but it might be an advantage to you.
John T.