Thanks Eric for the tamu fact sheet. The chart for Alum pounds per acre is pretty useful. If the chart is correct, and I believe it is, it might take less Alum than using the ( grams per gallon of water) test have shown.
I am now using a five gallon bucket test at the pond and adding a qtr tsp of Alum to the sample. I think I can get the weight of the tsp sample for treatment of the pond.
The first test with the bucket I added 3/4 tsp and the water had cleared up when I checked it the next day. The pH was tested and there was a drop in the pH from the strips it looked to be in the 6.5 to 7 range. Hard to tell exactly using strips.
I am now testing using 1/2 tsp and will ck on bucket test today.
