Oxidizers like bleach will break down and help remove live organic material slime algae etc Acids will dissolve and break-down scale deposits Caustics will dissolve and remove oils and grease and to some extent dirt.

Pontoon algae cleaner. ALGEX aluminum boat bottom cleaner is the worlds 1st aluminum boat cleaner especially invented for safely cleaning pontoons and aluminum boats. Algex will break the bond between the Aluminum and the algae so you can get it off without killing yourself. ALGEX will remove Algae Barnacles and Zebra Mussels on your aluminum boat but it will not Pit Aluminum or.

There are some sources online that say you can get away with cleaning algae from your pontoons with bleach and it might work to some extent. I purchased my 2004 2575 RFS used and the toons have been neglected and left in a slip too long. Where there is no paint the aluminum is stainded heavily.

Park or tow your pontoon boat to a good place for moss removal such as a driveway. When you get it clean protect the pontoons with VS721 to prevent algae from attaching and make clean up. Fill a clean plastic spray bottle with vinegar.

Ive done a number of things to clean the toons up. But keep in mind that algae can be stubborn and bleach might not be able to remove those green stains as effectively as an algae cleaner. Use ALGEX to clean aluminum boats aluminum pontoons Outdrives Sterndrives and Propellers.

I have heard that its easier to get off if it is allowed to stay wet and Ive also heard its also okay to let it dry and remove the algae after it dries. If you are unsure about how long to leave the cleaner on the aluminum you can test it on a less-visible part of your pontoon. Scrub the mossy spots with the scrub brush.

Vinegar is a multi-purpose cleaner effective cheap and affordable. Vinegar is acidic which eats away stains on reactive bases like aluminum. Whichever cleaner you use the general directions are to apply the cleaner scrub it into the aluminum let it sit for several minutes rinse it off and repeat if necessary.