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Old 03-10-2018, 10:41 AM   #1
Phil Eyler
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Continuing Black Tank Saga

Yea! I found my leak. My black tank is leaking along the front top seam. It's not real big/long. Is there something I can squirt or paint along this seam that will stop the leak? Anyone use Flex Steel? I of course will be very careful not to overfill my tank again as I assume that's what happened that caused the leak. Any and all ideas are much appreciated. Thank you for all your advice.
 
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Old 03-10-2018, 10:48 AM   #2
prndl
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Some have used eternabond tape with success.
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Old 03-10-2018, 11:32 AM   #3
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Somebody on this forum years back found an ABS resin repair compound. Might have been Oz. A search might find it. Seems like it was in a can almost like the ABS glue. Mine leaked at the top also. Found it when I walked away while back flushing the black tank. I never fixed it just quit over filling the tank.
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Old 03-10-2018, 03:21 PM   #4
rohrmann
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Repaired a split in the bottom of my gray tank, ABS also, with this stuff. Works great. http://plasti-mend.com/cart/index.ph...tegory&path=59
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Old 03-10-2018, 08:29 PM   #5
Carl n Susan
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Quote:
Originally Posted by rohrmann View Post
Repaired a split in the bottom of my gray tank, ABS also, with this stuff. Works great. http://plasti-mend.com/cart/index.ph...tegory&path=59
X2 on the Plasti-mend which is the product first found by Oz a long time ago.
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Old 03-13-2018, 04:19 PM   #6
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Never let any of the tanks get that full. Never travel with anything in the tanks. These tanks have a history of seam failure from over filling. As far as the black tank goes, its a waste of water to use the amount of water that a flush creates. For this reason, I installed a shut off valve in the water line to the toilet so I can either throttle it way down or shut it completely off. There is no need to flush a lot of water down every time. My wife and I can dry camp for 10 or so days without dumping.
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Old 03-13-2018, 06:00 PM   #7
jcurtis934
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As far as i am concerned, plasti-mend is the only way to go. Have used it on my galley grey and my black tank. Have a kit in my closet should my shower grey tank decide to develop a leak anywhere on its tank body.
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Old 03-13-2018, 06:35 PM   #8
rohrmann
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After repairing our grey tank that had a crack in the bottom of the tank, I added braces and blocking between the braces and the bottom of both the grey and black tanks. We can now fill and travel as needed with the tanks having water and waste in them, as needed. The photo shows the extra braces, 1 1/2" steel angle with the blocking between the braces and the tanks. After the photo, I removed the braces, re-installed the coroplast, and then installed the braces back into position. The tanks do not sag now.
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Old 03-14-2018, 02:49 PM   #9
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I did the same and supported all my tanks at the bottom. But I still try not to travel with much in them. I would rather travel with them either full of empty. Imagine a 1/2 full tank sloshing back and forth for several hundred miles. Not good. Its no wonder them bust and leak.
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Old 03-14-2018, 10:12 PM   #10
Texan
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I also braced mine with angle iron and 2x4's and i don't carry much in them but it is peace of mind. To many stories about cracked tanks and it's mostly because not enough support. How can the rv industry build these like this if they are suppose to be self contained. I guess they think you go dry camping with dry fresh water tanks so you will never add anything to the other tanks.
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Old 03-15-2018, 08:53 AM   #11
richfaa
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We did the same as our tanks failed. We added support braces and flexible pipe at the inputs of the tanks. We also do not travel with much in the tanks.
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