I have what I thought was pink stains on my 2001 Launch vinyl seats, but i have noticed it seems to spread without any accidents on our part. I have been talking with other boat owners and apparently this is a fungus that grows from under the vinyl in the cushion. Both Nautique and Mastercraft battled this problem a few years ago and made changes to their product to combat this.
Has anyone else had this problem and figured out a way to solve it?