Hey guys...haven't been on in awhile.Pond Frog got a little antsy reading. lol. To clarify my previous posts, db100 did not work even a little for me. As Adirondack has stated, it might work for someone else and not me because of the makeup of my particular soil. Sucks for me, but alas if I had done more research, hired a more knowledgeable contractor, etc. I wouldn't even be aware of this website or the knowledge of the people within because I wouldn't have been trying to find answers on the web.So in short even though your pond has problems, here you find your not alone, have someone always willing to listen, and have access to considerable knowledge.