Holding tank valve got ripped off.

Yes the pipe you can get from Home Depot. You'll have to get the two flanges and the valve from an RV place. Probably about $30 max in parts.

It's pretty easy to do too. If you want to be clever you can add some strategic flexible couplings too. It makes plumbing less prone to stress cracking. It makes it so you can remove plumbing too if needed.

Yeah better the grey than the black.....

last fall I bonked a pile of debris backing my TT into a very difficult and tight location. Didn't see it until I felt it....

Well, guess which one I damaged? Of course, the black.

It has a crack somewhere and drips "stuff"

If it ever warms up here in this frozen tundra, I'll get out and hack it apart and fix it.

Wish it was the grey.

Conversation with customer last November while I was parked in his driveway building him a sunroom.

Please excuse that black smelly stain running down your driveway - I'll mop it up when I leave, if it ever thaws!! Sorry about that! :E:E:E

This video shows a lot of the parts and how they go together:

https://www.youtube.com/watch?v=toD1epBKjnc

ABS piping.....could be 2" or 1 1/2"

Dump valves come in 3", 2" and 1 1/2"

So you need to be sure of the size

Home Depot should have ABS pipe and slip joint couplings

Valve and slip joint valve flanges would be via an RV Parts Store