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Fresh water holding tanks

Discussion in 'Technical Discussion' started by Ferru88, Oct 3, 2009.

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  1. Ferru88, Oct 3, 2009
    #1
    Ferru88

    Ferru88 New Member

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    After inspecting the water holding tanks, the paint or whatever coating that was used in the inside was peeling off. This all must be removed obviously and maybe recoated, if that would be the way to go. The water tanks are intergrated into the hull. Built in 1988. I don't think it was good approach considering direct contact with the hull, I would assume.
    Now that said, what would be a good product to use for recoating that could be recomended after extensive preparation?

    Other than that, I was thinking a bladder type of lining.

    Anybody with advice on this?

    John
  2. Ferru88, Oct 3, 2009
    #2
    Ferru88

    Ferru88 New Member

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    Re: fresh water tanks

    I know this question will be coming, the hull and the tanks are aluminum!!

    John
  3. NYCAP123, Oct 3, 2009
    #3
    NYCAP123

    NYCAP123 Senior Member

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    DK what kind of boat you're talking about or the size of the tanks (guess: Striker?), but most boats under 60' will use plastic tanks. They can be gotten in almost any configuration. DK if I'd want any kind of coating that leaches into my drinking water.
  4. Ferru88, Oct 3, 2009
    #4
    Ferru88

    Ferru88 New Member

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    My feelings as well. No contaminents in the water needed!! OK, plastic membranes should be the answer.



    length is 50ft Alu
    Thank you,

    John
  5. K1W1, Oct 4, 2009
    #5
    K1W1

    K1W1 Senior Member

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  6. Ferru88, Oct 4, 2009
    #6
    Ferru88

    Ferru88 New Member

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  7. K1W1, Oct 4, 2009
    #7
    K1W1

    K1W1 Senior Member

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    Hi,

    There is an application guide link on the page I sent you. These paints work the best if used with the corresponding primers etc.
  8. corinthian99, Oct 5, 2009
    #8
    corinthian99

    corinthian99 New Member

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    You might want to fit carbon filters after the tank - new coatings tend to give a bit of a nasty taste for a while. Not necessarily harmful but not pleasant.
  9. Capt J, Oct 5, 2009
    #9
    Capt J

    Capt J Senior Member

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    I think they mostly use an expoxy based paint on the inside of aluminum freshwater tanks.
  10. Ferru88, Oct 7, 2009
    #10
    Ferru88

    Ferru88 New Member

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    Thank you for your input. Carbon filters will certainly be present.

    What about Porland cement as an additional liner? I have heard it adds better tasting qualities. Not sure about the possible aluminum reaction though.

    Anybody know about this?

    Ferru88
  11. Ferru88, Oct 7, 2009
    #11
    Ferru88

    Ferru88 New Member

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    Thank you! Yes epoxy based is where I will go, and maybe Portland cement. I don't want to do over kill here either!
    With all your reponses, it has certainly put me on the right track.
  12. K1W1, Oct 7, 2009
    #12
    K1W1

    K1W1 Senior Member

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    Hi,

    Add another Filter casing and fill it with crushed limestone, it will do the same job as the cement and is a lot easier to maintain.
  13. Ferru88, Oct 7, 2009
    #13
    Ferru88

    Ferru88 New Member

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    Bailed me out again!

    Thanks K1W1