Small update: I decided to take some water samples just to see if the sediments in the water would settle to the bottom. I took this on Friday and it looked exactly the same Monday morning. Nothing settled. So I'm guessing that clay is really mucking up the water.
I contacted my local county extension office to get my water tested and took a sample down there today.
I did do a little test on the water with some gypsum. I work at a lumber yard and we have tons of sheetrock. I grounded some up and put it in the water and within 2 hours everything had settled to the bottom. Obviously I don't want to go dump a bunch of sheetrock in my pond but it was interesting how well it cleared up.
I do have a question. I have a small ditch that runs into my pond. I was thinking about digging it out a bit and putting down some riprap to help clean the water when we get enough rain rather than it running through muddy clay. What's everyone's thoughts on this?
Thanks!