RV Plumbing Pipe

White is PVC and black is ABS. They can be coupled with the correct fittings or rubber couplers. Since you asked such a basic question, I suggest you do a lot of research before you tackle this and get some help from a friend with plumbing experience.

THe black is ABS pipe, which HD also carries.

chiefward wrote:
I;m going to reroute the galley tank discharge to the black and grey water discharge pipe. Is the rv black pipe the same as Home Depot white pipe? If not, where can I get the black pipe?

On some TTs the black ABS is a odd size. Not available at Home Depot etc. I got mine from a RV parts supply business.
It's been a few years since that project, so I can't recall the size. I also don't know how widespread this is in the industry.

Thanks for y'all quick response. I just didn't remember see the black ABS at HD. Will do a search at my HD for ABS. ( I didn't know what it was called.)

From the galley sink it's just going to be 1.5" standard ABS.

They are the same size. Last Spring I had to replace the p-trap under the bathroom sink. It was the same size as the white p-traps used in your home. You can use the white.

Home Depot should have it, it is standard pipe used for drains. :)

Home Depot should have it.......but it may only be 2' lengths

But they'll have boxes and boxes of fittings

It seems that "huntindog" and myself have the odd stuff here. My drain piping is black, but not the standard size. Make sure before you start cutting.

DutchmenSport wrote:
They are the same size. Last Spring I had to replace the p-trap under the bathroom sink. It was the same size as the white p-traps used in your home. You can use the white.

P traps are white but the rest of the pipe is ABS black.