Gray tank leaking

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Sharpscamp
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Joined: 11/01/2021 - 14:54
Gray tank leaking

I have a 13' scamp, 2011 with shower etc.  The gray tank has been repaired in its previous life and now the repair is beginning to leak.  I suspect that at one time the outlet was damaged by collision with some immovable object as the leak is right where the outlet pipe connects to the tank.  These two photos are taken from at the back of the driver side tire. I have cut away the rubber like material in the area of the leak.  The rubber like material used for the previous repair is quite flexible and soft, but would likely get me a few more trips if I can get more of it and get good adhesion.  I am looking for suggestions a product to repair this as I am leaving on a road trip in 2 weeks and no time to replace the gray tank.  Thank you.

Mark

Sunfish
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Joined: 08/14/2020 - 21:47
Suggestions on patching leak

I have used two products on water leaks with good success.  First, you could try Flex Seal (liquid).  This would be good if there is some flexing of the connection occurring and because you can easily work with it and layer it.  It is possible that the crack is due to flexing of the trailer going over bumpy roads rather than a collision.  Second, you could try Water Weld ("plumber's putty").  The advantage of this is that the area does not have to be dry to work.  The disadvantage is it can be difficult to work with because it is an epoxy and you don't have a large window of time after mixing before applying.  It is not flexible.  You should try to rough up the area with sandpaper before applying either.  Both can be purchased at Home Depot, Lowes, Menards, or some hardware stores.  

Paul O.
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I would suggest a flexible

I would suggest a flexible sealant, like LEXEL, my favorite. Plumbers Putty is good for a lot of things but it cures hard and in many areas like this, some flexibility is good.

-Paul
2004 Scamp 19 Deluxe,
2021 Tacoma, Double Cab, 6 cyl. 4WD
Colorado

Sharpscamp
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Gray tank leaks, thanks

Thank you for the comments.  I have removed all the old sealant that was applied so will now figure out which way to go. It looks like the connection between the tank and the outlet tube is broken free about half way around the tube.  Also a very small crack in the tank itself adjacent to the outlet tube.  It seems all this will require a strong seal to keep from leaking.  I will report back after my road trip, about 6 weeks.  

Thank you,  

Mark

Mark

jmgotham
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Last seen: 1 week 4 days ago
Joined: 04/08/2023 - 09:24
Update?

I'm having the (nearly) exact same problem with my gray water tank. How did you end up addressing your issue and how did it work?

J.M.G.