Once in awhile I get a sheen, like when gasoline is spilled on water,, on small parts of the pond and on wet areas where water is standing. It doesn't smell or feel oily and doesn't effect anything so I feel it is some kind of a biological happening.
Hey John thanks for the reply. It would seem I am not the only one with this issue so that makes me feel a little better. I wonder what it could be??? Like I said the next time I see it I may take a sample and see if I can get it analized.
Thanks,
