Welcome to the forum.
You don't say what kind, Above or Inground, and the shape. Circular pools are a dog with solar covers. Rectangular or oval are the easiest. Storing on a rail should work but the trick is to get it on and off the rail without tearing the bubbles. The white cover is necessary to keep the heat down. The inner layers can get really hot and destroy the cover quickly. My pool is an oval inground with a rectangular cover. I roll the cover on a long length of 2" PVC pipe and I fashioned clips to hold the starting edge on the pipe. I roll it, then lift one end out of the water to drain the water out, then lift it on the deck. Watermom has a 24 foot AG and cut the circular cover in quarters and rolls each slice on a pipe the same way.
Al