As far as SAFETY concentrations, a QUART of dill pickles has an average of 1/6th teaspoon of alum in it, or 1.1 grams per gallon, or .002425 pounds per gallon, which equates to a VERY safe application rate of over 792 pounds of alum per acrefoot of water.
Bumping this thread. I did the jar test with water from my newly dug pond, the turbidity did not settle out after 4-5 days so as a test, I added a teaspoon of dill pickle juice to the jar and the clay settled out very quickly.
Now I just need to figure out my application rate once I get some alum, then I can stock fish. Should I worry about PH since there are no fish in the pond yet? The pond is very turbid (chocolate milk) from several gully washers that we have had since it was built in April, too turbid to get a bloom started.
