polypipe

I am in need of brands of 1/2" polypipe that will last 10-15 years. It will be buried, except where the drip emitters are around the pecans. i will need to buy about 18000 feet for 9 acres of trees. Price is important, but quality (value) is more important. Any suggestions??du

I hope this is relevant
http://www.google.com/search?client...ectancy+of+PVC-U+pipelines"&ie=UTF-8&oe=UTF-8

i'm not sure they are. PVC lasts so much longer than PE, it would be hard to apply study. Thanks for the reply...du I am considering Netafim polypipe, but it is more expensive than some of the other pipe

Tree roots growing around the pipe and squeezing it closed might be a bigger factor than anything, and the "softer" the material the easier it will happen, but I have also had it happen to 3/4" PVC water lines and 3" PVC sewer lines.