Keeping a swimming pool cover on your pool is a great way to keep the water warm and to keep things like leaves and bird droppings out of the pool.  Nobody really wants to go swimming with either of those items.  The large plastic covers to a great job of keeping your swimming pool as low maintenance as possible.  There is one problem however.  If you do not have someone at home to help you put the cover on and take the cover off, it can be a difficult procedure.  Automatic swimming pool covers cost more, but they make the removal of the cover much less of a burden for the homeowner.  These covers can be a retracted without requiring the actual removal of the cover by a single individual.  The pool cover is simply rolled up and stored rate at the edge of the swimming pool itself.