How To Winterize Your Garden Pond
Maintenance:
If you have an external biological filter on your pond, let it continue to run until there is the chance that the outlet water flow might freeze. If you shut the filter down, let the water drain from it either via siphon effect or from the drain plug. Do not clean it other than to remove any dead plant life, leaves etc. An in-pond filter should be removed for winter. You can leave your pump (if non-oil filled) in the pond so long as it is well under the point to where the ice will form. Remove as much debris as you can from the pond. Net out dead plant material, leaves, waste, sludge etc., but a deep cleaning is not necessary. Try not to stir up the water too much. You can do a partial water change if you want, but no more than a quarter inch, and never after the fish have begun their hibernation. During the winter check on your pond often to make sure all is going well. If the pond has completely frozen over NEVER break through by pounding on it, as this may aggitate the fish, and may harm your pond liner. Do not panic, remember if an Aerator/Circulator Decontaminator unit is being used, it’s still working bringing in oxygen and absorbing toxicants. Now would be the time to plug in the deicer, but just until the ice opens. Another quick trick you can do, is too pour some hot water until the hole opens again.
