Hey Captain,
I bet you're happy with your pond clearing.
Just FYI in case you decide to try alum, it doesn't need to be laboriously dispersed. You can dump a 50 Lb. bag in 1 pile in shallow water, and it completely diffuses in 30-45 minutes. I haven't experimented large scale with gypsum yet. I think it would also dissolve and diffuse, but at a slower rate than alum. I suppose it needs at least some spreading. Lime is another matter entirely. It needs to be well dispersed, or simply spread on the banks.
When your pond is at full pool and beginning to clear, as the water evaporates, it will become crystal clear as the minerals become more concentrated.
Looks like you are almost there. Good luck!
