Hi, I've always kept my pond filter going in the winter. I have a pond cover and a waterfall and it never froze. But I have a new shower filter setup this year outdoors whereas my previous filter was in an enclosed area. I'm in NY where the winter can get pretty cold. Does anyone run their shower filters outdoors in the Northeast or Northwest during the winter? Do you have any advice on how to keep it better insulated? Any advice would be greatly appreciated!