I live part time on Lake Sinclair in Ga. we have a lot of new under water grass growing over most of the lake the lake in 5-15 foot depth range , in my big cove ( about 1 mile long and 200 yards wide ) there are probably 55 houses , a neighbor stops and ask if I want to help pay for killing the grass . He says $350.00 about 4 times a year , grass don't bother me that much as I just fish AND I don't have confidence that the chemicals would work anyway . I didn't commit to my decision either way , what would you do ? Ga. power owns the lake I think they should handle the issue , because if you don't do every where it will probably fail . So the treatment guy wants $20,000.00 3-4 times a year . The more I think about it I will not give my go ahead on the project .