Darn! I just got back from the store and saw that product...didn't get it though. We are pretty remote here in Paw Paw. It takes an hour to drive to nearest shopping area which is Winchester VA. I will definitely go back into town tomorrow and get this and give it a try. I thought it was to use after the brown was gone and the water looked cloudy. Thank you very much for the name...and the picture is very helpful too.