Give it a salt water or vinegar or bleach bath! all the chemical with cause a ton of corrosion(rust) that is irreversible. I knocked my laptop in to my pool one, by the time I pulled it out it was fried. So removed all the components about a week later to see it any of it was salvageable. Nothing was but I took the hard drive apart to remove the magnet because I like to play with them, the outside of the drive was full of white powder the you see when aluminum rusts. The platters where not rusted, I guess because they are sealed. But if you give the Patters a bath in salt water or vinegar or bleach I guarantee they will NOT be unrecoverable!