need to get all of the brown stuff off
 

my boat stays in the marina all year, last year my left sprang a leak and the boat spent a good amount of time sitting in the river water. long story short i now have a bunch of brown algae marks on it. what is the best solution for removing thses?

your left .. what? I think you missed a word there.

sorry, my lift

So you're looking for a good cleaner for the outside of the hull?

yea something that will really get it off. i have tried sulferic acid and sno-bowl a few times but there is still stains on the bottom. im considering wet sanding with some super fine sand paper then buff it all out again.

I have had good luck with Star Brite Hull Cleaner many Wal-Marts have it.
http://www.starbrite.com/productdeta...ull%20Cleaners

Long ago, before buying a lift, my parents left their boat in a lake that had terrible algea growth. I was the one in charge of cleaning the bottom every month or two. It was a nasty experience, but I've never seen Muratic Acid unable to take that stuff off. Sometimes it required a good scrubbing, but that stuff ate anything... including skin!

maybe thats the stuff i used, i get the two mixed up lol

I believe the marina where my boat is stored, they use the same muratic acid to clean the bottom of my boat off. It went in dirty and came out sparkling... LOL.

Cost me $50, but it was worth the cash.

I personally would not touch the stuff. I hate handling hazardous chemicals. So thats why I leave that up to them. They know what they are doing...lol.

my problem is most of it is on the underside so in order to get down there to clean it i am very likely to get it on me and that stuff burns! not to mention breathing it is even worse. i have some super fine sandpaper discs that i have used for body work that i am considering trying. i may just try rubbing compound and the high speed polisher first.