If you get extended periods of snow cover and with a 10 ft deep pond next to a woods leaf factory that each year deposits high amounts of oxygen consuming decaying leaves, how do you plan to prevent winter fish kills as the pond becomes aged with a deepening layer of sunken oxygen robbing leaves - say after 8-16 yrs and leaf layer is deep / thick?

1. Why the two appendix shaped sections on the pond? If you are going to circulate water why not have the larger "river" reconnect to the pond which will allow water flow through the river thus enhance the nutrient filtering ability of the planted section and return "cleaned" water back into the pond?

Last edited by Bill Cody; 02/18/18 03:06 PM.
aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management