Driving from California to the East Coast. My alignment was off so I took it to an alignment shop and as I left the shop I bottomed out and busted my sewage holding tank pipe. So I fixed one problem and now I have another. It's the big 3 inch pipe and it's got a hairline fracture in it. Is there a way to repair it without taking it into the shop and having them replace the whole pipe? Is there some way to fix it from within the pipe? Some kind of repair glue or patch kit? Thanks! John

My first move would be to grab a small can of ABS cement, and run a big bead of it, right over the crack. If that fails, there are kits made to repair broken plastic pipe.

Any existing crack in it will be prone to propagating and any repair leaving the crack in place should be considered temporary. Permanent fix is to replace that section of pipe. It's not that hard to do if there is reasonable access.

soren wrote:My first move would be to grab a small can of ABS cement, and run a big bead of it, right over the crack. If that fails, there are kits made to repair broken plastic pipe.Be sure to use primer on it first before applying the cement.It's not a pressure pipe, it's worth a try before replacing the whole pipe.

If you have access, stop drill the ends of the crack. Use JB Weld to repair the crack. Cover the repair with a strip of Eternabond. It's not a pressurized system, the repair will stop any leaks.It's nice to replace the broken pipe. Sometimes it's just easier to do a good repair, especially if you're on the road.You may not want to bother replacing the pipe when you get home.

Help With Busted Sewage Pipe! | Good Sam Community

NRALIFR
Explorer
Jul 02, 2016
That's what I was going to recommend: two part epoxy putty. It works like modeling clay and sets up like concrete. The shower p-trap in my TC has been fixed with that stuff for 10 years.

BTW- Dolly Parton is "busted". Your pipe was broken! :B

:):)
soren
Explorer
Jul 03, 2016
Johnny Dearborn wrote:
What does the primer do?
Not much on the black ABS plastic, since it doesn't need primer.
time2roll
Nomad
Jul 03, 2016
It is just ABS with almost no pressure. Mix some ABS shavings in with ABS glue should work. JB Weld should do fine also. If you think the crack may continue just drill a 1/8" hole at each end before you slap on the JB. Worst case you can cut the pipe out later.
Bordercollie
Explorer
Jul 04, 2016
Some RV repair places have ABS plastic repair equipment and could probably fix crack permanently at a fair price, call around.
Snowman9000
Explorer
Jul 04, 2016
For any future reader with the problem, buy a Plasti-Mend ABS kit. I've used it more than once and it works great.

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Help With Busted Sewage Pipe!

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