Not quite ready to move forward on this yet, but I gotta say I am amazed at the results off of Alum on a small test of pond water. While at the property yesterday I took a water sample in a 2.7 quart plastic bottle. Did a little math to confirm my baking skills still were in check.
4 quart = 1 gal 2.7 / 4 = .675 .675 = ~ 11/16 rounded 11/16 up to 3/4 of 1 tablespoon 3 teaspoon = 1 tablespoon used 2 level teaspoons that I mixed into a small bowl of the pond water and then dumped it back into the bottle.
started the test at 11:54am watched the water from the side and could actually see the water and clay separating as the clay started to fall to the bottom of the bottle.
at 12:08PM I had this....
1.5acre LMB, YP, BG, RES, GSH, Seasonal Tilapia I subscribe to Pond Boss Magazine