Solar Pool Cover 16-mil 20x40 ft Rectangle - Heat Retaining Blanket

Our review of the BigXwell Solar Pool Cover finds it best suited for owners of in-ground pools who want a straightforward way to raise and hold water temperature while cutting evaporation and maintenance. The bottom line: this heavy-duty, blue 16-mil blanket is a practical, easy-to-handle insulating cover that uses sunlight to warm the pool and helps reduce chemical and water loss, so families and seasonal pool users get more comfortable swims without relying on an electric heater.

Key Features

• Harness the Power of Sun: The cover converts sunlight into heat to naturally raise pool temperature and lower reliance on powered heaters.
• Maximize Heat Retention: The 16-mil material traps and maintains heat so the pool stays warmer for longer, extending comfortable swim times.
• Reduces Water & Chemical Evaporation: By creating a barrier at the surface, the cover limits evaporation and reduces the frequency of refilling and chemical adjustments.
• Protect Your Pool: The blanket blocks dust, leaves, debris, and animals from entering the pool, making routine cleaning easier.
• Durable & Lightweight: Constructed from sturdy yet lightweight material, the cover is designed for longevity and is simple to install or remove by one or two people.

Who It's For

The BigXwell Solar Pool Cover is ideal for homeowners with in-ground rectangular pools around 20 by 40 ft who want a low-maintenance, cost-effective way to add passive heating and reduce evaporation. It suits families, part-time residents with seasonal pools, and anyone using a reel system, since customers noted it works well with reels and rolls up easily.

Those seeking a full winter cover or a rigid safety cover should look elsewhere, as this product is a solar heat-retaining blanket intended for heat retention and basic debris protection rather than full winterization or child-safety barriers.

Pros & Cons

Pros

• Effective at heat retention; users report temperature gains when exposed to sunlight.
• Durable construction and noticeable thickness that resists wear under normal use.
• Lightweight and easy to deploy or roll up, compatible with reel systems for convenience.

Cons

• Not a substitute for a full winter or safety cover; limited protection compared with rigid systems.
• Only one color and one material thickness are specified, so options for different climates or aesthetics are limited.

Specifications

Our Verdict

The BigXwell Solar Pool Cover is a solid value for owners of 20 by 40 ft in-ground pools who want an easy-to-use way to raise water temperature, reduce evaporation, and keep debris out. Its 16-mil thickness and durable feel make it a practical accessory for seasonal and year-round pool maintenance without the cost and complexity of powered heating.

Frequently Asked Questions

Will this cover fit a 20 by 40 ft in-ground pool?
Yes, the product is a 20 ft x 40 ft rectangle designed for in-ground pools of that size.

Can it be used with a reel system?
Customers report the cover is easy to roll and works well with reel systems for deployment and storage.

Does it prevent evaporation and chemical loss?
Yes, the cover creates a surface barrier that reduces water and chemical evaporation, lowering maintenance needs.