Wasnt sure if i should put this in this forum, or the "Everything Else", but here goes anyway.
I'm planning my solar install and in doing research, have noticed a lot of people using black pipe for thier install. It looks much better than the white PVC, but if I am not mistaken, isnt the black pipe ABS drain pipe?
Can you really use that for plumbing a system under pressure? I always thought that was a no-no.
Any advice/info would be appreciated.