Broke Sewer Pipe Can't Buy New

[silverta16]

Dropped my camper in a ditch and tore off the grey tank line. I can't source black sewer pipe anywhere. It's ABS and now Lowes or nobody sells it in black just white. They call it DWV pipe for non pressure. What do you suggest just painting it? Been to Camping world and every local plumbing supply in 30 miles of home.

[norty1]

Here is a link to maybe an online resource. Easy way would be to just use PVC.
https://www.pvcfittingsonline.com/re...t-is-dwv-pipe/

[Scott91370]

I bought my replacement on Amazon when my entire underbody piping (both grey & black) was torn off in a snow/ice storm.
Make sure to get the correct primer & glue.

[craigav]

That is what I would do, purchase the white pipe and repair the plumbing then while you are there purchasing pipe, purchase some black paint. I would have to give it more thought about whether to purchase spray paint or paint that has to be brushed on as I wouldn't want any spray paint to blow in the wind against my white fiberglass siding. In fact, mine is an older RV as with time they all get that way, so white pipes are not really a concern that I have. ~CA

[Scott91370]

The problem I ran into was home PVC (white) is not the same size as RV ABS (black) and the fittings were not compatible. Epecially where it goes into the tank. I guess if you could find the same schedule it may work but I don't know if they can be glued together.
I confirmed with a friend that is a plumber and he told me he had to do the same when he replaced pipe on his trailer.

[craigav]

Originally Posted by Scott91370

The problem I ran into was home PVC (white) is not the same size as RV ABS (black) and the fittings were not compatible. Epecially where it goes into the tank. I guess if you could find the same schedule it may work but I don't know if they can be glued together.
I confirmed with a friend that is a plumber and he told me he had to do the same when he replaced pipe on his trailer.

That would certainly be a good reason not to use the white pipe. I did a couple of checks and found the Home Depot sells the black ABS pipes, however they are not in stock at my local HD but could be ordered and would arrive in 2 days.

https://www.homedepot.com/p/VPC-3-in...1203/202300520

I also found that even if they are the same size that the glue used is different for each type (abs vs pvc) and the recommendation is not to join the two together directly and instead to use a transition coupling:

https://www.familyhandyman.com/project/abs-vs-pvc/

"If, for any reason, you need to join one to the other during a remodeling project, don’t just cement the two together. Instead, use a rubber transition coupling with stainless steel clamps."

So based on what Scott91370 shared and what I just now read, I take back my earlier recommendation and suggest to order the ABS black pipe (along with ABS specific cement).

Years back I had a similar issue, however I was able to save and re-use the broke off section and I used a rubber sleeve along with a stainless steel wrap around style clamp to join the pipes back together which worked well for my needs. ~CA

[silverta16]

Well I ordered the correct abs fitting to go into the tank. Bought white pvc at Lowes and the pipes fit together now I’m pondering the gluing. I bought cement that says it works for pvc and abs pipe. Really not sure now what to do.

[craigav]

Originally Posted by silverta16

Well I ordered the correct abs fitting to go into the tank. Bought white pvc at Lowes and the pipes fit together now I’m pondering the gluing. I bought cement that says it works for pvc and abs pipe. Really not sure now what to do.

As long as it all fits together and the glue says it works for both, I would move forward and piece it all together. I say this because it is easy enough to keep an eye the pipes vs if they were in the wall like they are in a house. Also, there isn't much if any pressure on the pipe(s) to be concerned with. ~CA

[silverta16]

After some research on YouTube they make a green cement that is specific for joining pvc and Abs pipes guess I’ll find it. Says it’s only for drain applications not pressure which is all ABS is supposed to be used for. They call it a transition cement.

[craigav]

Originally Posted by silverta16

After some research on YouTube they make a green cement that is specific for joining pvc and Abs pipes guess I’ll find it. Says it’s only for drain applications not pressure which is all ABS is supposed to be used for. They call it a transition cement.

I have seen that green abs to pvc transition cement at Lowe's, in fact that is what I thought you had purchased as I don't remember the others being for both abs and pvc. In any case, Lowe's should have it (if it is in stock). ~CA