I have been stumped locally in finding alum in other than the little 4 pound gardening bags. Does anyone know where I can find 50 pounds or so? I need to clear my very very muddy sediment pond. When it runs over, it muddies the pond below it. It's only about 20,000 gallons, or .062 acre feet. I don't want to kill the healthy minnow population in it. I will mix the alum with quicklime, which I can get.

I don't want to have to buy it in the tiny bags at an unreasonable price.

Last edited by John Fitzgerald; 04/25/20 12:39 PM.