I have a question has anyone used those pond logs yet? How long do they last? Do they work well? How much do they cost? I have pond that is fed by a creek so there is a lot of soil that comes in when it rains. Three days ago I got 1.25" rain and at the times the pond was not stirred up I check my clarity and it was 19 inches but the very next day I went and checked and it only had like maybe 5 inches. There was no rain in between the times I went down there. I thought it would have been worse right after the rain but it was better. Any thoughts? The only fish I have in there are bluegill and bass as far as I know I haven't seen anything else