Brad, I ran into the same problem myself. I started off mixing the gypsum with pond water a bucket at a time and heaved it into the pond. This didn't last long, so I broadcasted it by hand. Not happy with this method, I think it all sank to the bottom then melted, no mixing. My pond has cleared a little (been 2 weeks) and may clear more, but would not suggest this way of application. Not sure what I will do if I have to reapply. Borrow my neighbors pirou. Jim