Checking RV Tank Capacity – Then OH OH! Cracks!

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  • #52647
    Ray
    Keymaster

    In this video, I started off demoing how to test an RVs true holding tank capacities using my Rainwave digital water meter.

    However, during the tests, I became aware of 2 small cracks in the top corner of both the shower gray and black tank! When the tanks were filled to max capacity, the 2 small leaks became readily apparent.

    I guess I’ll have to put my tests on hold and tend to the cracked tanks first. Any advice on how to best fix them is appreciated.

    RV products in the video (Amazon Affiliate Links)

    Rainwave Water Meter – https://amzn.to/2AaeSr7
    Tenkor Zero G Hose – https://amzn.to/2LBk8s9
    Camco Water Fill – https://amzn.to/2LACRnB
    Camco Tank Wand – https://amzn.to/2LIRLbL

     

    #52649
    Jeff
    Participant

    Hey Ray looks like the tanks are Fiberglas  just pick a kit  at chapy tire and bobs your uncle .

    #52651
    Ray
    Keymaster

    [quote quote=52649]Hey Ray looks like the tanks are Fiberglas just pick a kit at chapy tire and bobs your uncle .

    [/quote]
    They are ABS. I got an idea from a guy about cutting up an ABS pipe, heating in an oven, flattening and forming it over the crack and then using ABS glue to seal it up. Seems like a good bet for a cheap fix. 🙂 Will see how pliable ABS is once heated, he said he did a similar corner repair no problem.

    First I’m going to check out the local boatyard parts store and see what cool stuff they have. 😉

    Cheers, Ray

    #52653
    Jeff
    Participant

    Cannot wait for that video.

    #52655
    Curious by Nature
    Participant

    Nasty spot to get at. Are you planning on dropping the tanks for the repair? Eternabond may be an option.

    #52659
    Daryl
    Participant

    Ray my cousin used this on a repair of a water tank

    http://www.plasti-mend.com/cart/index.php?route=product/category&path=59

    #52661
    Ray
    Keymaster

    [quote quote=52655]Nasty spot to get at. Are you planning on dropping the tanks for the repair? Eternabond may be an option.

    [/quote]
    I’d rather not unless I really have to. Will try to repair with then in first.

    #52663
    Ray
    Keymaster

    [quote quote=52659]Ray my cousin used this on a repair of a water tank

    http://www.plasti-mend.com/cart/index.php?route=product/category&path=59

    [/quote]
    Thanks, I came across that one too, and a few commenters on YouTube have recommended it.

    #52667
    Walt & Vicky Davis
    Participant

    I also have a small leak in my black tank.  I got under there and found that it is an old repair that is leaking.  Looks like they used the ABS repair kit I have seen on line but did not let it set up before using it.  Anyway, I could not find anything that would adhere to ABS.  A neighbor tried all the “as seen on TV” stuff and none of it would hold.  He finally tried gorilla glue and it worked like a charm.  Now his was a crack in the line to the dump valve, not a leak in the tank itself.  But it worked so I decided to try it.  It did work for about two weeks but I noticed the leak is back.  Before I give up on it, I am going to re-coat it with the glue again.  I think it will eventually hold.  So if yours is a crack, I would try that first.   :good:

    BTW, I have had some experience with MDI (Methylene diphenyl diisocyanate), the active ingredient in gorilla glue.  Had to use a release agent with it or it would stick our small press closed.  That is how well it bonds to metal…. or anything else.

     

     

     

    #52670
    Ray
    Keymaster

    I’ve ordered a couple of the plastic-mend kits. As they look the best for use in the confined area where the cracks are

    Will give them a try first. If they don’t work I’ll likely drop the tanks and perform a more robust repair.

    #52681

    I admire the fact that you’re never afraid to get your hands dirty and tackle pretty much anything! I’ve had a crack in our shower pan for months and JB Weld has been holding up well, not sure if it would work well in your situation.

    Good luck!

     

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