On Mar 17, 2009, at 3:29 PM, Bob McNitt wrote: > Ed, In many areas of the northern climates, highly acidic ponds & > lakes are > often treated with lime. It's usually done by liming atop the ice in > winter. Can you test a pond for Ph with a swimming pool test kit? Roy Roy Morgan k1lky at earthlink.net 529 Cobb St. Groton NY, 13073