Hi all,

I know that the New York City local electrical code has some pretty nasty restrictions that most of the USA doesn't (e.g. you still can't use nonmetallic cable and PVC boxes even after all these years - everything has to be either BX or conduit), so I'm wondering if they're just as *BEEP!* about plumbing codes.

1) Can PEX (the red, flexible garden-hose-type with the crimp connections) be used for supply lines (including inside walls)? What about CPVC?

2) Can PVC be used for drain lines in New York City? If yes, what about connecting new PVC drain pipes to existing cast-iron systems?