{"product_id":"in-the-swim-20-ft-x-40-ft-12-mil-blue-rectangle-solar-pool-cover","title":"In The Swim 20 ft x 40 ft 12 Mil Blue Rectangle Solar Pool Cover","description":"\u003cp\u003eIn this review the In The Swim 20 ft x 40 ft 12 Mil Blue Rectangle Solar Pool Cover is assessed for pool owners who want an economical way to extend swimming season and reduce heat loss. The bottom line: this cover is best for owners who want a simple, effective solar heating aid that raises surface water temperature and prevents evaporative heat loss at night. It is a straightforward, durable-feeling sheet that delivers measurable warmth without the complexity of a mechanical heater.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12 Mil thickness:\u003c\/strong\u003e Thicker material helps increase surface water temperature by up to 15 degrees for more comfortable swimming and longer season use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight blue color:\u003c\/strong\u003e The medium blue balance absorbs and retains heat while still allowing some light transmission to avoid overheating and encourage gentle warming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEvaporation control:\u003c\/strong\u003e The cover reduces evaporative heat loss overnight, which helps keep pool temperature stable and cuts replenishment of water due to evaporation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical guidance:\u003c\/strong\u003e Designed to be used when chlorine is below 2.5 ppm and pH is above 7.2 to avoid premature degradation from high chemical exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with reels:\u003c\/strong\u003e The cover works with a solar cover reel for easier removal and application, reducing manual handling wear and tear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe cover suits above ground and inground pool owners who want a low-cost method to raise and retain water temperature without installing a heater. It is ideal for those who swim in transitional seasons or who want to cut heating costs by making solar gains more effective.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for owners who run very high chlorine levels or very low pH, since the manufacturer recommends using the cover only when chlorine is under 2.5 ppm and pH above 7.2. Those seeking a permanent, professional heating system should look elsewhere.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProvides noticeable warmth, with customers reporting consistent comfort gains and surface temperatures several degrees higher.\u003c\/li\u003e\n\u003cli\u003eGood value compared with active heating; simple trimming and installation make it accessible for most owners.\u003c\/li\u003e\n\u003cli\u003e12 Mil material feels substantial and resists tearing during routine handling when used with a reel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLongevity is mixed in customer reports; some users see several years of life while others report earlier wear depending on care and chemical balance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eRectangle solar pool cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e20 ft x 40 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e12 Mil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eLight blue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible pools\u003c\/td\u003e\n\u003ctd\u003eAbove ground and inground pools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemical guidance\u003c\/td\u003e\n\u003ctd\u003eUse when chlorine \u0026lt; 2.5 ppm and pH \u0026gt; 7.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe In The Swim 20 ft x 40 ft 12 Mil solar cover is a practical, good-value choice for pool owners who want measurable warmth and reduced evaporation without complex equipment. It performs best when stored and handled with care and used within the recommended chemical ranges, delivering an economical way to extend your pool season.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this cover fit my rectangular pool?\u003c\/strong\u003e\u003cbr\u003eIt is sized 20 ft x 40 ft so it will fit pools of that size or slightly smaller after trimming; many users trim the edges for a precise fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I leave the cover on at night?\u003c\/strong\u003e\u003cbr\u003eYes, the cover is intended to prevent overnight evaporative heat loss and help retain warmth; follow the chemical guidelines for best life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a reel to use this cover?\u003c\/strong\u003e\u003cbr\u003eA reel is not required but highly recommended because it makes application and removal easier and reduces wear from handling.\u003c\/p\u003e","brand":"In The Swim","offers":[{"title":"Default Title","offer_id":48194317615323,"sku":"B0CB7D1MBK","price":242.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71pHMzcDJnL._AC_SL1500.jpg?v=1770233349","url":"https:\/\/gearmusthave.com\/products\/in-the-swim-20-ft-x-40-ft-12-mil-blue-rectangle-solar-pool-cover","provider":"GearMustHave","version":"1.0","type":"link"}