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  1. #1
    My Boats:
    2001 Fountain 47
    Join Date
    Aug 2001

    Cleaning Fresh Water Tank

    Does anybody have the instructions for cleaning out fresh water tanks in boats? I can remember seeing an article in a magazine a long time ago. I have searched the net and found nothing.

    My water tank has some nasty smelling water in it and there is supposed to be a way to flush and sanitize it. Help?

  2. #2
    Charter Member Charter Member Ted G's Avatar
    My Boats:
    Marlago 35 FS, 18 Neptune CC
    Join Date
    Jan 2001
    Edgerock Baby!!

    Re: Cleaning Fresh Water Tank

    Shock it with about a cup of bleach per 10 gallons and run that through all the lines till empty. Then run about 50 gallons of fresh water through. After that if you have city water (chlorinated) just use that. If not use a capful of bleach for every 20 gallons of water put in the tank to keep fresh. We never drink it even when it's kept clean, always bottled water.
    Chesapeake Bay Powerboat Association

  3. #3
    S.O.B (single O/B) now Platinum Member t500hps's Avatar
    Join Date
    Sep 2004
    Richmond VA

    Re: Cleaning Fresh Water Tank

    I was going to say the same thing as Insptech. We did this on our cruisers for years. (you can buy an additive for the tank at marine supply stores, but the bleach is just as good or better, and cheaper too)

  4. #4
    Registered CROWN MAN's Avatar
    My Boats:
    1998 454 22 SCARAB
    Join Date
    May 2004
    Stuck In a Cuban Prison Camp

    Re: Cleaning Fresh Water Tank

    If you drink out of the tank.White Vinegar

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