PB friends, we know that the pond is deep, and so an alum treatment might indeed lock up some nutrients (P) as it precipitates and maybe it will stay on the bottom. I have never been involved with an alum treatment. So, we'd like to hear from those of you who have used it.
Can we expect an improvement in water quality (lower productivity and decreased oxygen demand in the winter under ice cover) after a treatment? What is the cost of a treatment for a water body of this size (so we can compare it to other treatment options)?
Many thanks!!
