When vacuuming pool two weeks ago, found dozens of tiny metal shavings within bag (almost like tiny strands of solder). Interviewed kids...could not find source. Wife found more the next weekend. I finally inspected all around the pool and found one part of the auto cover rails that looked like it had a metal piece peeling away from edge. There were shavings right underneath in water. Gotcha. I cut off the piece that was extending slightly out over pool and vacuumed pool again. Called pool cover company....they are sending someone out next week. Anyone else ever see this? Is this something that one normally has to monitor as pool cover ages? Ours is only 6 months old...