Reviving this thread, because to me it's the most complete Alum thread.
Before doing the Alum deal on Highfyler's brood pond, we tested the Alum on a small 1/5 acre cow tank I had. It was used first for 2 reasons: 1) To get the procedure right. 2) Nothing in it to kill, so no consequences if done incorrectly.
After a week, the water had cleared, and a tremendous algae bloom had started. There were small floating patches of FA, but generally the tank responded as expected. The FA has since stopped.
What's interesting to me, was the continued usage by 30 cows and the consequences of re-stiring the mud on the bank. Although the banks were extremely muddy, they continue to resettle after a few days.
Now, a month later, the water continues to stay clear after muddying, and GSF are clearly visible and active.
My CNBG brood pond was to be treated with Alum also, but the need for Alum was negated by adding lot's of new water. It has cleared nicely on it's own, so no Alum will be used.
So my question is, is this normal for Alum to re-clear water if stirred up? I've never heard this addressed.
