How much gypsum did you add? I put in 2800lbs in my 1&1/3ac pond. After a month it is now clear with visibility of a little over 2 feet! I can see my bass now swiming by and watch the bream and channels come up to feed. Before the gypsum I could not see a ring on my hand at 3 inches deep. I live in Opelousas, where is your pond?