Blue Wave NS510 14-mil Solar Blanket for Rectangular In-Ground Pools, 12-ft x 24-ft, Clear

They only last a few years, but that is normal. I like this one better than blue color. When they do go bad they make a mess so replace it before it disintegrates. I'm in eastern WA and during the summer I take it off it heats so well. I've had my pool 108 degrees before with it on during a 100 degree week with sun.

Have the clear 14-mil version. A month in, and I've been pretty happy. Installed in April, and within a week, the water temperature had risen 10 degrees, in SoCal (from 70 to 80). We do get lots of sun, and this was the first time we had ever swum in April in our pool. After another 70-degree week in May, we're up to 87. Without the cover, we certainly wouldn't have gained more than 5 degrees in the same span - we'd always loose a lot of heat in the cool nights.We have a kidney shaped pool, and it was fairly easy to stretch across the pool, draw the edge with a sharpie, and cut to size with scissors. I've left a few inches extra on all sides so that it wraps up the edge of the pool tiles, and leaves some flexibility when aligned it back to fit each time. Never have had trouble with wind blowing it away. But if you leave the edges long and curled up, rain water collects on top rather than flowing into the pool.Removal is a little tricky, but it can be rolled long-ways, and then rolled again into a manageable cylinder. It's not heavy to lift. It feels very sturdy, dragging it along our concrete. After some practice, typically 5-7 minutes to remove and reinstall, just 1 person. 2 people certainly make it simpler. A rectangular pool would also be easier.The warmth is nice, and we also haven't had any evaporation - so no pool refilling yet. I almost think it'll be too good: I don't want the water 90 degrees, but I do want to avoid evaporation in the summer.

Accidentally bought size too small. But it still does its job. I had the cover on and off for 2 weeks and water got really warm. over 10 degrees warmer than without cover. It's not one day 10 degrees but slowly getting warmer daily. Unfortunately, I did not buy a reel with this and did not fully understand the risk. Without a reel (which takes 15 seconds to roll up the cover) I was dragging the cover left and right and just piling it messily at one end of the pool. Took a lot of energy so I left it on for 10 days (MISTAKE 1). During that 10 days, it rained for 2 days (MISTAKE 2). What I found out is that with cover on, water cannot circulate well. With bits of water on top of the cover, chlorine does not get mixed so algae grows. With rain, there are more rain that is not chlorinated. So 10 days with cover on and rain, water temperature went from 70's to 80's with green algae.Lesson, solar blanket works. And get a reel. And make sure to uncover it regularly during the daytime.UPDATEI have pushed it use it 3 seasons with leaving it rolled up on the reel during winter time. 2 years, I just left it on the reel out by the pool without any protection and 1 year, I actually put them under a patio for protection from weathering. By 2nd year, some of the bubbles were falling off, but I just collected them with the net. By 3rd year, more bubbles were falling off and there was some wear and tear, especially around the seam toward the end of the reel where it got most sun exposure. Year that I put the blanket away, I eventually got around to it in November. I believe if I was diligent in putting the reel away after swim season, it may have lasted bit longer.Overall, it cost around $140 for 3 seasons of warm swimming pool in Southern California. If I leave the blanket on for couple days, the temperature goes up close to 90. I still recommend a blanket, but for Southern California, maybe 12-mil is what you need where as for bit cooler region, get something bit thinner. I got 12 mil replacement and wrote a review. https://www.amazon.com/gp/product/B01CEJ1AD0/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1

Let me start off by saying I wasn’t expecting much for this cover since we had purchased a blue cover at a yard sale however my wife insisted. I was wrong. When we got the cover it was lighter than expected however much stronger than the previous cover. We read somewhere the clear cover allowed more sun through to heat the water so we decided on clear. The cover was easy to roll out and so easy to cut to our oddly shaped pool size, a pair of good scissors worked fine. Very rugged material that would not tear but easy to cut.Once we got the cover in place the temperature during the day was in the mid 90’s and sunny and dropped to the upper 50’s at night. In two days the pool temp stayed in the upper 80’s and didn’t fall like it normally would to the mid to low 60’s to match close to the night temperatures. We got at least another month out of enjoying the pool. Hope it helps to reduce evaporation also.We had a lot of rain, for Arizona, 5 inches within a week and I was worried the cover might sink however it shed the water over to the edges and back into the pool without a problem. Was not affected by wind either. Two bad thins, the pool service requires us to remove the cover befor they will service the pool so we remove it on the day they come and put it back later. The other thing is one of our dogs tried to walk on it and it held long enough for us to get him. The dog had never went near the pool before so please be careful.Excellent product and would recommend it highly.