> Agree...best to bury any type of
> pipe, even if only 2-3 inches to
> keep sunlight off it. Of course,
> for freeze prevention of lines,
> need to bury below freezing line.
> Polyethylene (aka "black
> flexible poly pipe") that
> comes in rolls is relatively
> stable in sunlight and will expand
> some without breaking if water
> freezes in low spot. PVC
> (polyvinylchloride) pipe
> (preferable "Schedule 40 or
> Schedule 80") is more
> expensive, but sturdier.
> Above-ground PVC can last up to
> about a year in direct sunlight
> without bursting if it is not
> walked on or driven over. I would
> not keep above ground pipe
> pressurized if you can't be around
> every day to turn water off if it
> happens to burst without your
> knowing it.
> I have also used the gray, PVC
> schedule 40 electrical conduit for
> above-ground lines for special
> situations. It is very sunlight
> resistant and UL approved for
> electric lines permanently
> installed in sunlight. It is
> primed and glued just like the
> regular white PVC water pipe.
> I would not use any PVC pipe rated
> as "Class 160" or
> "Class 200" for
> above-ground piping. Stress level
> is much lower than Schedule 40 or
> Hope this helps! (I'm also a Texas
> Licensed Irrigator).
Thanks guys-I have heard of & saw ,on the Cattle Today Cable Show,some flexible water line that was highly UV tolerant,very flexible,even stood up to cattle traffic, & they drug it all over the place!! But no name was mentioned.Where we are going to put new paddocks,almost impossible to bury! Thats why we are looking for above ground flexible, water line.But we really need a good SOURCE for this stuff! Thanks again