Looking at some pictures I took last weekend, I do think the pond is clearing a bit. The above picture was after 4 inches of rain last week and pond filling at least a couple of feet. Just a casual observation shows a few inches of clarity around the frog and the pictures at begging of thread showing zilch. I put a couple of tablespoons of vinegar in my jar in middle of afternoon and so far no change that I can see yet. I will post comparison tomorrow after 24 hrs. Sometimes I can’t see the Forrest for all the trees.