John M. Jemison, Jr., Water Quality and Soil Specialist, University of Maine Cooperative ExtensionChris Jones, agronomist, Natural Resources Conservation ServiceUpdated by Donna Coffin, Extension Livestock Professor, University of Maine Cooperative Extension For information about UMaine Extension programs and resources, visit extension.umaine.edu.Find more of our publications and books at extension.umaine.edu/publications/. Water tank with float on a