Black water tank leaking! :( Please help! I need ideas!

[Oregonconversion]

Glad I decided to do a pressure test with WATER before I filled up my tank! When I got this tank the guy put the drain in the wrong place and I had to seal the hole. When I used black ABC pluming glue I did not do the best job.   I am showing where it is leaking in the pic. It is leaking pretty bad, a nice steady drip of about 3 a sec. 

My idea was to take some type of glue (what type though... epoxy? CA?) and get it in there with a small needle.

My friends idea is to cut the tip off and try to get the piece out of there, then put in another piece with cap back in with lots more glue.



What is YOUR idea? I don't need shat everywhere!

Thanks,
Jim

[Stormcloud]

Remove the plug as best you can, use a Dremel to grind away the rest of the old plug carefully).
I bet a new plug with lots of Sikaflex would do the trick.

Bet you're glad to find it now rather than later....

[Oregonconversion]

YES I AM! 

Man.... my dremal tool just took a poo on me.

Maybe I can remove it with my dremal Multi Max? LOVE THIS TOOL BTW!!!


Im just scared that if I start cutting it out that it I will go too far into the original plastic cuff and screw it up for good.

[moose]

J-B weld
thank you trevor

[Oregonconversion]

J-B weld
thank you trevor

Do you suggest injecting it in there? With what?

[moose]

j-b weld is a epoxy you mix two products together and you are supplied a popsicle stick to smooth it out with .
this product is self leveling .
i put it on a radiator leak in my 450 deisel on the plastic cap on radiator
that was 3 yrs ago still no leaks 150000 miles .clean it good rough it up with sand paper, file
apply all over put it thick and possibly after a day put a second coat
trevor

[Oregonconversion]

OK, Thanks Trevor. I will try that before I try to take the piece out. I have heard good things about JB weld, but have never used it. I am familiar with epoxy like substances and have always had great luck. I will give the tuff stuff a try. 

[Oregonconversion]

Would you suggest the water weld?

http://www.jbweld.net/products/index.php

[Oregonconversion]

Also.... should I drill out a small hole to get the product in?

[moose]

i think they have 3 products you mix
the marine weld takes longerto cure and with the regular j-bweld
I would try any one of them
great product
The longer to set gives you more time to move it around and get it to where you want it
trevor

[moose]

no do not drill small hole just clean good rough up area with sand paper or a file toget in close to everything
dry good
Mix it up apply with popsicle stick
wait til hard once good and hard 24 hrs if you want rough that up put another coat on top and go larger
it will work
trevor

[John316]

Jim,

We have been there done that. So, here is what we did. They also put our black tank hole in the wrong spot. We sent it back, and had him weld a proper plug in. Our freshwater tank, however, had a leak at a seam. I took it to a local plastic welder, and he tried to repair it. He couldn't get it repaired, so he built us a new one.

Somebody suggested that we use JB. I wouldn't do it....here is why. If it seals now, but then works it's way loose 5k miles from now, you have a mess on your hands (I know what I am talking about). Now is the best time to take care of it properly.

Do you know what kind of material your tanks are made out of?

So I would recommend you taking it to your local welder, and getting it fixed properly. Don't do a half way job.

YMMV

God bless,

John

[Oregonconversion]

Well John, the tank is in there permanently! Well.... it would be a crazy time to remove it. I am in Canby OR right now. (20 min from Portland)

The closest place I know of that can spin weld is almost 2 hours away in Eugene. 

[kyle4501]

My $.02
Since it is installed past the point of easy removal . . . clean & scuff the surface to give the epoxy a good tooth.
Use the JB weld that fits the job.

In the odd chance it leaks in the future, you can worry about doing a more time consuming repair then.


In this case, I think JB weld is your best solution. When properly used, it is phenomenal. I've seen it used to seal a cracked engine block on an old A/C tractor - the crack was over 8" long. I don't know how long it will last, but it was still holding when I sold the tractor after 12 years.

Good luck!

[Melbo]

how about a double dooty repair (pun intended) and after you epoxy the leak get a rubber cap (the kind with the hose clamp around it) and put it over the original repair just in case.

To clarify do the epoxy repair and check it but then put the cap over to have the added security.

Just a thought.

Melbo