How to properly close an above ground pool?

Should I move the pump and filter inside for the winter? If I to hide? winter I put the filter in the establishment and removed the drain plug. It's a bit heavy so if I can leave it there to ensure this would be ideal. In addition, I have to cover the skimmer? I saw some videos online and said they do not cover winter pool skimmer cover. Is it the exposure?

Here / http://www.redspools.com/WinterizeAbove.html

Winterizing your Swimming Pool use of Air Pillows