how to clean brown stains on boat

I took my boat to a different lake for the first time and when I pulled it out there was a brownish film that stained the white hull and sides. I tried some wax to remove it but did not come off. My hull used to be nice and white but it has a brownish or yellowed stain from the water line down. What can I use to clean this back to a white finish??? Thank you.

paul

Re: Removing brownish stain from hull,,,what works best?

toilet bowl cleaner

Re: Removing brownish stain from hull,,,what works best?

Are you serious or is this a joke?

paul

Re: Removing brownish stain from hull,,,what works best?

just about any bathroom cleaner will work. soft scrubb,scrubbing bubbles.

Re: Removing brownish stain from hull,,,what works best?

Well... yes to toilet bowl cleaner, but it has to have Oxalic acid in it. Also known as "Slimey Grimey". You can also get oxalic acid at the marine supply stores.

You'll just spray it on and wait an hour or less. The brown algae will be gone. What's left is oil residue and can be washed off with your favorite detergent.

Re: Removing brownish stain from hull,,,what works best?

+1 for the Magic Erasers. $3 for two of them is a steal when you realize how well they work. Be careful though, they do disintegrate rather quickly.

Re: Removing brownish stain from hull,,,what works best?

Well... yes to toilet bowl cleaner, but it has to have Oxalic acid in it. Also known as "Slimey Grimey". You can also get oxalic acid at the marine supply stores.

You'll just spray it on and wait an hour or less. The brown algae will be gone. What's left is oil residue and can be washed off with your favorite detergent.

I get the same stuborn stain...never had luck with magic eraser/bathroom cleaners... i found out the same as gstanton that a cleaner with an acid in it works the best...no matter what you use it seems the grim goes on easier than it comes off..and the longer the brown film stays on the harder it is to remove....my neighbor used rubbing compund with no luck then tried "the works" toilet bowel cleaner and it came off with one wipe. Just wear gloves and use eye protection. But slimey grimey is the best product I have used. this link demostrates it. http://www.youtube.com/watch?v=BqK1x6BSB1c
Denny

Re: Removing brownish stain from hull,,,what works best?

Is "slimey grimey" the name of a tolet bowl cleaner that is sold at dept. stores? Thanks everyone.

paul

Re: Removing brownish stain from hull,,,what works best?

Attwoods brand "hull cleaner" available at Walmart.....works great for the scum I get anyway. $7 a bottle....another member here cuts it 50% and said it works just as good.

Re: Removing brownish stain from hull,,,what works best?

I use "The Works" toilet bowl cleaner. Just spray it on and let it sit for about 5 minutes and then hose it off.

Brown stain gone.....

Re: Removing brownish stain from hull,,,what works best?

Attwoods brand "hull cleaner" available at Walmart.....works great for the scum I get anyway. $7 a bottle....another member here cuts it 50% and said it works just as good.

I second this. The Wal Mart Hull Cleaner works beautifully.

I put it in a spray bottle and spray it on, let it sit for about a minute, then hose it off. For stubborn stains I will use a scotch brite pad to work it in. Don't let it dry prior to rinsing it off. Also flush it good with water, to include the trailer.

I would put a coat of wax on after using it. Don't really know if you need to, but I do because the brownish scum doesn't build up as fast with a fresh waxed surface.

Re: Removing brownish stain from hull,,,what works best?

A hull cleaner product, Seasense at Wall Mart, many different brands. All contain acid. All work well.