We had some pretty gusty winds last Thursday and being a newbie to pools I felt I was safe as the solar cover seems to stick to the water...Not!! Wind lifted it completely out of the water and ripped it off the 8 doeys that hold it to the roll up bar and deposited on the lawn 25 feet away. Having a humpback kidney shape was a little bothersome anyways as rolling and unrolling on a non rectangular shape is tricky. My other concern was the week prior the dog was looking up in the sky (she barks at the white lines jets make... weird I know) and lost her footing and slipped into the pool. I was not home at the time but my son had to get her out and he said that he was afraid if in her panic she might have gone under the cover. So I have chosen to live without the solar blanket for the meantime. I instead picked up some of these pool pills and will give them a whirl. They say they are not as effective as the solar cover but I am not sure what it is worth in aggrevation to roll and unroll the darn thing as opposed to plopping a $13 liquid in instead. Anybody out there using these and do they really work? Also I would be curious to know ball park based on keeping the water at 81 when we swim, how much the cost difference is for natural gas? If the savings are 2 or 300 per season then I am willing to pay it, but having never had a pool before I have absolutely no idea what that heater will run me. I look forward to your responses. Thanks'