The sun deck on my boat has yellow brownish stains on it. I am looking for something to remove them especially on the white. I have tried magic eraser, soft scrub, toilet boll cleaner with bleach in it, straight bleach, carb cleaner, mineral sperits, and none of them completely got rid of the. I just bought the boat so I am not sure what the stains are from. Any suggestion would be great. Thanks Eric

With everything you have tried, I doubt they are ever going to come out. I had similar stains on my engine hatch vinyl and tried everything. I think they were actually coming from under the vinyl. I just had the vinyl redone on mine.

I'd agree with Griff, doubt they are coming out. Suprised the carb cleaner didn't disolve the vinyl.

The only thing I've tried that worked for red clay stains was Simple Green 1:1 with water. Scrub, rinse for a long time (it's strong stuff). It might be worth a last ditch effort.

Last resort, maybe in the summer try to expose it to the sun. I have the same issue. The more sun exposure the fainter they became.