After the big tidal surge on the bay from "Isabel" a lot of oil, along with who knows what else, was dumped into the waters in our marina (Tidewater) from a few sunk boats (we were lucky) and an oil drum that ruptured. So much so that the HAZ MAT people boomed off the marina for a few days till the mess was cleared up. However, a lot of this "yuck" was deposited onto the fiberglass hulls and showed up especially well on the white hulls which comprises about 95% othe the boats. I got into my dingy and scrubbed down the tops sides and stern but the yuck left a yellowish stain in some places of the hull especially the stern. The same stain covers the top of our dock box that was under about five feet of water. (That's right, 5 feet. It's not a typo!) I can't seem to get the stain out and I was wondering if there is some sort of solution I can use on it. Any suggestions? Has anyone else had a stain like this and if so what did you do to get it out. Or didn't you. Bob