Rainman, Thanks for the info. I just went into the site today to look see what I could do to clarify the water in my small, maybe 1/10 acre pond. I have a lot of clay suspended. It has never cleared up since it was dug a year ago. I just googled alum and aluminum sulfate and found a supplier and ordered a 50# bag via the internet as that looks to be enough to treat a pond this size that has water maybe 6 ft average depth. RubyCreekTed
