Quote Originally Posted by keith_r
pvc is considered the "least toxic" (at least by greenpeace)

http://archive.greenpeace.org/toxics/pv ... e/bad.html
Did I read that wrong? It shows it as the most toxic... It says PE is the best (aside from bio based plastics).

Again the issues are the additives. I am going to opt for virgin PE with a high mil thickness. It can degrade in the sun, but if it's covered right it might be the best option.

As far as the pipes... I'm still thinking... It also depends on the mfr of the product...

The pyramid of plastics is a ranking of plastics according to their hazardous characteristics. PVC, the most problematic plastic, is at the top of the pyramid, and biobased plastics, the least polluting of the plastics, are at the pyramid's base.
Keith are you smoking the funny tobacco again???