Jake, what's your rention time? IN other words how much flow do you have. You can measure the water coming out of the drain pipe and figure you volume to get how many days it takes to "retain your lake". If you have too much flow that could be the problem, fertilize not staying around.
I recommend ag lime but have used hydrated with good success. If we can not get ag lime in I have had good luck with 100 lbs/acre. You will have to do this every 4-12 weks depending again on flow. Good luck!
