Best thread on Gypsum I have found. Thanks to all who posted.
I plan to add some this spring to my pond. I am going to take a water sample and test the PH tomorrow and see what happens. I'll probably drop a few grains of sheetrock into the water to see if it makes a difference.
I just got a quote this week for the Gypsum. I was quoted $22.50 for a 50 pound bag. My pond is 1.3 surface acres with an average depth of around 7 feet. I figure 2,000 pounds should be more than enough but that is over $800 so we'll see. That is more money than I want to spend
