Thanks for the info and the weblink to the tannins article. It sounds like it is tannins caused by the many leaves that get blown into the pond. If I drain the pond and refill it, how long before the tannins affect the color? Is it years or will it be right back to tea color after fall?
Also, does the silt affect the water quality and does the silt keep the pond from leaking since it's so dense and packed in along the bottom? Do I just leave that alone? Thanks for the help...
