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  1. #1
    My Boats:
    one slow Fountain, one fast ice boat.
    Join Date
    Feb 2002
    Traverse City, Michigan

    cleaning boat bottom with olympic deck cleaner ?

    Anyone ever try cleaning the algee/slime off a boat bottom using Olympic deck cleaner ?
    It's a lot cheaper then On-Off and biodegradble. The label says it is good for vinyl siding. I'm thinking of trying it on a small section of the underside.

  2. #2
    S.O.B (single O/B) now Platinum Member t500hps's Avatar
    Join Date
    Sep 2004
    Richmond VA
    God Luck....I find a mild solution of bleach and water does better than the store bought deck cleaners. I'm convinced bleach and water is all that is really in those bottles anyway.

  3. #3
    Charter Member # 55 Charter Member Griff's Avatar
    My Boats:
    ..........32........... Active Thunder
    Join Date
    Oct 2000
    For algea, slime and stains on the bottom just use muratic acid. $4 a gallon. Pressure wash it first, then spray on the muratic with a pump garden sprayer. Rinse VERY well, especially the trailer. Also, do it in the street, the acid will eat/discolor your driveway.

  4. #4
    My Boats:
    36' Apache
    Join Date
    Sep 2003
    Here and There
    It will also seriously kill your grass, flowers, or what ever else that might be growing.

  5. #5 Platinum Member zitoracing's Avatar
    My Boats:
    Join Date
    Nov 2004
    Gonzales , LA
    muratic acid is what I use to clean the brown off of my boat bottom

  6. #6
    My Boats:
    2004 29 Outlaw
    Join Date
    Apr 2001
    Baton Rouge, LA
    Go easy with muratic acid. I've seen boats that were cleaned with it on a weekly basis and the gelcoat looked like crap. Got real rough and stained way easier.

  7. #7
    Registered sleeper_dave's Avatar
    Join Date
    Apr 2005
    Quote Originally Posted by baywatch View Post
    It will also seriously kill your grass, flowers, or what ever else that might be growing.
    Double bonus. Then I don't have to mow, and I can spend more time using the boat!

  8. #8
    Join Date
    Jul 2007
    Muriatic acid plus a little soap helps keep it from running off so fast. Some people use a scotch bright pad. I think that is a mistake use a soft brush. jmeng witnessed problems with gelcoat probably more to do with scratches for cleaner pads than the chemicals. Been using acid on bottoms for many years without problems.

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