Originally Posted by NJtoNC
I have never seen pex used for drain lines. I don't think they make pex in1.5"?
pex is made in larger sizes typically used in europe for commercial applications. I don't think it is recommended for drain applications only supply side. Wahoo is right , use the black abs for drain applications and make sure to use the correct glue and also abs fittings to put everything together. Lowes or HD should have whatever you need.