I was reading on a WSU site that the reason that PVC doesn't get along with contractor's plastic (or maybe even Polyethelene) is that the PVC "off-gasses" over time, and the gas reacts with the plastic to cause it to deteriorate. She said that you should only use 6 mil UV treated polyethylene which should last for two to three years. I looked up 6 mil polyethelyne, and it is possible to buy it without it being treated, so watch what you buy when you do buy! I'll see if I can find that link .Originally Posted by JeffW
Ahh, that wasn't so hard, I had that one bookmarked http://cru.cahe.wsu.edu/CEPublicatio...25/eb1825.html
Originally Posted by Carol A. Miles, Ph.D. and Pat Labine, Ph.D.