I have a 12mil solar cover from In the Swim, it was on my pool for 2 months and the bubbles are filling with water. It is covered under warranty, but a major PITA to submit paperwork remove the old one from the reel and even a bigger PITA to installed the replacement blanket. So where online can I get a solar cover that will last at least 5 years and not pay a fortune? I'm looking for one that is 18X36. I am wishing I asked this question last year on this forum Thanks