I am looking for the best automatic pump for the top of my solid winter cover. I have a large amount of pine needles due to the Norway Spruces lining the side of the pool (I don't want to cut them down). Also, I live in northern NJ so the water on top (mixed with leaves and debris) freezes. So the pump needs to be able to handle both debris and not get damaged when it freezes. Not the perfect pool location, but its what I have. I've tried to find reviews of pumps but they are mixed. Who here has good experience with a particular pump that would work in my conditions?