Removing red water stains

[Chesadena]

I keep my boat out of the water so I don't have bottom paint. In the spring I spent the night at a friends dock and the water was a red tint during this time like you might see in the fall with leaves in the water. Since then I have some stubborn red stains on the hull below the water line. The only thing I've tried so far is generic boat wash and water but I would like to get rid of the stains. Anyone have any thoughts on what product may be good for this?

 

[Gregory S]

FSG=Fiberglass stain remover.

 

[Bob J]

FSR ??

 

[Capt. Bill1]

Blue toilet bowl cleaner. Or any acid based cleaner like CLR will work great and they're cheap.

 

[Gregory S]

Sorry! FSR.

 

[Chesadena]

Thanks for the replies guys. I actually wound up using "on and off" which took the stains off in about a minute. I then followed it up with Buff magic and then Rejex. Looks like new. Thanks!
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