Cracked gray tank on travel trailer

[kwilt06]

Went camping this past weekend and discovered water coming from gray tank. After inspecting the leak I found a crack on the bottom of the tank..my question is do hassle with replacement tank or do I patch it...if I patch it what do you folks recommend? Thanks

[BFlinn181]

You might try this:

Amazon.com: Plasti-Mend ABS Plastic Repair Kit for ABS Plastic Holding Tank Repair: Automotive

https://www.youtube.com/watch?v=CRp-hEcm7v8

If you Google 'patching rv holding tank' you'll find lots of links.

[kwilt06]

How can I find out what kind of plastic my holding tank is? It says not for polyethylene plastic

[BFlinn181]

Originally Posted by kwilt06

How can I find out what kind of plastic my holding tank is? It says not for polyethylene plastic

That's a tough question!! Most I.D. methods require burning a sample. You can check through the info here --- and they sell repair kits.

Identify Plastics

The only other suggestion would be contact the trailer manufacturer and ask them for the tank source.

[marcham]

After making a repair, would you trust that it won't crack again? I'd just replace the entire tank. They're not that expensive.

[Patrol 65]

You could use a fiberglass repair kit to patch the crack or maybe JB Weld. Both are low cost solutions.

[Annierufus]

Just a thought, 3M 5200 is a caulking approved for below the waterline of a boat. It takes a long time to cure, but seems to stick to just about anything, might be worth a try.


Joe 1998 Itasca Sunflyer Ford 460