Copper sulfate calculation:
1. estimate or measure approximate surface acreage (Google "ACME Planimeter" for free measuring method using google maps)
2. estimate average depth
(Surface acreage) X (Avg. depth) = acre feet
To get the recommended CS dose you need 1 ppm (part per million). It takes 2.73 pounds of copper sulfate per acre foot to get that concentration.....so
(acre feet) X 2.73 = pounds of copper sulfate you need to properly treat.
In our part of the Midwest you want to probably do this twice each season in a pond that has FA problems....the first time as the water hits 48-50 degrees and then a couple of months later if needed. On the second dose, as mentioned in an earlier post, you might try Cutrine Plus liquid and spot treat from time to time.
Hope that helps. BM61
Last edited by bassmaster61; 02/03/17 01:08 PM.