...Personally, I'd explore the use of repetitive, sequential, low-dose rates of aluminum sulfate for such utility-ponds. Lanthanum-based products would also prove effective, and are also fish-safe, but involve a notably higher cost.
Kelly, thanks for the information. Esshup and I agreed about the aluminum sulfate, but honestly, I kinda sorta turned away from it because of the cost if done on my big pond. So 2 quick questions. What's considered a low-dose, and does a low dose still require the halved type 2 lime? Most of the ponds i deal with are no bigger than 100X100, and no lower than 5-6 feet.
