Blue Wave 18-ft Round Solar Pool Cover, 12-mil Clear Thermal Bubble Blanket — Retains Heat & Reduces Evaporation

Blue Wave’s 18-ft round 12-mil clear solar pool cover is a lightweight thermal bubble blanket that sits on your above-ground pool to capture solar heat, reduce evaporation and block debris.

This solar cover is made for above-ground pools that need an easy, low-cost way to warm water and cut maintenance. The clear 12-mil vinyl carries thousands of downward-facing air bubbles that absorb and transfer sunlight into the water by day and add insulating value at night. It’s sized for an 18-foot round pool and can be trimmed to fit around ladders or return fittings, while the durable construction balances easy handling with season-long performance.

How does this cover actually warm my pool water?

The cover’s clear material lets sunlight pass through and the bubble layer concentrates heat at the water surface. Those trapped pockets of air reduce heat loss after sunset, so daytime gains are better preserved overnight. The result is more consistent swimable temperatures without running a heater as often.

• Clear vinyl maximizes solar transmission to the water.
• Thousands of thermal bubbles concentrate and hold heat.
• Insulating effect slows nocturnal cooling for longer warmth.
• 12-mil thickness balances heat retention with easy handling.

Will it cut evaporation and keep my pool cleaner?

Yes — laying the blanket on the surface creates a physical barrier that limits water loss and keeps airborne debris from falling directly in. Reduced evaporation means you refill less often and save on chemicals lost to dilution. The cover also helps keep leaves and dirt out between uses, lowering routine skimming and filter strain.

• Surface barrier reduces water lost to evaporation.
• Blocks leaves and larger debris from entering the pool.
• Helps maintain chemical balance by limiting dilution.
• Less frequent skimming and filtering required.

How do I install, trim, and store the solar blanket properly?

Place the cover bubble-side-down directly on the water and center it for best fit. Trim excess with household scissors to work around ladders or fittings; leave a small overhang for easy removal. For storage, dry it, roll rather than fold, and keep it shaded to avoid UV deterioration during the off-season.

• Lay bubble-side-down so pockets touch the water surface.
• Trim carefully to fit around pool accessories; cut slowly.
• Dry fully, roll up, and store in shade to prolong life.
• Avoid leaving folded to prevent creases and stress-points.

How tough is the 12-mil construction and what warranty applies?

The 12-mil vinyl is thicker than very lightweight covers yet still easy to handle for most pool owners; it stands up to routine placement and seasonal use. Blue Wave supports this blanket with a 5-year limited warranty and brings over three decades of pool-product experience to its manufacturing and quality standards.

• 12-mil thickness offers a balance of durability and maneuverability.
• Designed for everyday seasonal performance, not heavy mechanical stress.
• Backed by Blue Wave’s 5-year limited warranty.
• Made with more than 33 years of pool industry know-how.

Who is this for: The Blue Wave 18-ft round 12-mil clear solar pool cover is aimed at above-ground pool owners who want a simple, cost-effective way to extend their swim season and reduce maintenance without installing an electric heater. It suits households that prefer DIY trimming and storage, those seeking lower water and chemical use, and anyone wanting a lightweight, reusable solution to keep water warmer and cleaner from spring through fall.