Keith, in your example here you did not add any lime for maintaining the pH to the desired range. Alum is an acid and I suspect it is most likely in the 4 or 4.5 range (based on my experience with chemicals in my work along with the post I have read here). So, I am guessing you have or will add lime when using the alum. So can we talk about the addition or distribution of the lime into a pond.
Recently, there was a post where the lime was added at the trolling motor and maybe, it was added to fast or not enough was added. Resulting in a low pH in the pond water. Is there any reason why lime can not be added to the alum mixture where one can check the pH of the mixture before it is added to the pond? If one could add the two chemicals together before added them to the pond, it would seam to me, this would reduce the chances of having a low pH in the pond during or after the alum is added. What do you and Rex have to say when or about mixing the two chemical together, checking the pH and then adding the mixture to the pond?
Tracy
