The local 'big box' has 6' white IPS PVC DWV with cellular core. I've
done a little research and it is unclear if I can use the white PVC for
an outside replacement of the 6" Clay pipe. The codes on the DWV pipe
indicate it is F-891-00, schedule 40, NSF, and JM 30/35. The building
department for the city has told me I can use schedule 40. But is the
white OK for US outside applications? I know green is usually used.
Any advise is appreciated.