Stuff
Well-Known Member
IRC code talks about allowed ABS and PVC "including schedule 40, DR 22 (PS 200) and DR 24 (PS 140); with a solid, cellular core or composite wall"
So is there more than one type of schedule 40? Just wondering if someone has a simple explanation. - What is DR22, 24, and PS 200, 140 ?
So is there more than one type of schedule 40? Just wondering if someone has a simple explanation. - What is DR22, 24, and PS 200, 140 ?