It seems that there are always questions this time of year about winterizing plastic ponds. To begin with, clean out all the gunk (composed of fish and plant waste) at the bottom of the pond. Specialist garden catalogues have a little gizmo that attaches to a hose and when the hose is run, the gizmo acts like a vacuum cleaner, sucking debris from the bottom of the pond. Or, more simply move your pond pump to the pond bottom and direct the output to the ground and not the filter. If you don