Pool cover reels simplify the task of putting on and taking off solar blankets. Cover reels eliminate the hassle of folding and storing a solar blanket while at the same time preventing it from getting dirty or damaged. Cover reels are available in a variety of sizes to fit most pools by length and width. Some covers can be used for both inground and above-ground pools; while others are designed specifically for one type. Pool cover reels are available in both manual and motorized versions. Although motorized versions tend to be more expensive, they're known to last longer and require fewer repairs than manual models.