My solar blanket on my IG 16x32 pool is blowing to one side . This is happening in less than 14mph winds. At one point last season the reel was pulled into the pool. The Last blanket was a heavier gauge than the new one this year. I have since anchored the reel support to the cement. I have enjoyed the pool for over 15 years and only had this cover problem the last two. Any suggestions on keeping the cover to stay put.