Bestway Flowclear 18' Round Solar Heat Pool Cover — Blue, Fits 18-Foot Above-Ground Pools, Reduces Evaporation & Warms Water

The Bestway Flowclear 18-foot round solar heat cover is a floating pool cover designed to retain warmth, reduce evaporation, and block debris for 18' above-ground pools.

Made to fit 18-foot diameter above-ground pools, this lightweight blue solar cover captures sunlight to help keep water temperature steadier while minimizing water loss and debris entry. It floats on the pool surface and tucks just inside the pool rim, making it simple to install and remove. The cover pairs well with 18' steel-frame pools and comparable models from other brands.

How does this cover help keep my pool warmer?

The sheet acts as a thermal barrier that traps solar heat and reduces overnight radiant loss. By collecting sunlight and preventing warm water from releasing heat to the air, it helps maintain a more consistent surface temperature.

• Bubble-style solar material captures and transfers sunlight into the water.
• Reduces heat loss from the water’s surface, especially overnight.
• Helps the pool absorb more sun during daytime, boosting passive warming.

Will this cover reduce evaporation and chemical loss?

Yes — covering the surface limits direct wind contact and slows evaporation, which conserves pool water. By reducing surface exposure to UV light, it also helps lower chlorine degradation, so your sanitizers remain effective longer.

• Limits water lost to wind-driven evaporation.
• Protects chlorine from rapid UV breakdown.
• Helps maintain stable water levels between refills.

Is it easy to put on and take off an 18' pool?

The cover is designed to float and sit just inside the pool edge for quick placement and removal. It’s lightweight enough for one or two people to handle, and it stores compactly in the included storage bag when not in use.

• Fits inside the pool rim to stay in place without straps.
• Floats for straightforward on/off handling.
• Includes a storage bag for off-season stowage and transport.

Will it keep debris out and fit my brand of pool?

The cover helps block leaves, twigs, and other floating debris from entering the water, keeping maintenance simpler. It’s sized for 18-foot round above-ground pools and is compatible with many models including Bestway steel-frame pools and similarly sized Intex or Summer Escapes pools.

• Prevents leaves and larger debris from contaminating pool water.
• Designed for 18' diameter round above-ground pools.
• Works with Bestway and many comparable pool brands.

Who this cover is for: homeowners or renters with an 18-foot round above-ground pool who want an affordable, low-effort way to reduce heat loss, cut evaporation, and keep floating debris out. It suits users looking for a simple seasonal accessory to extend swim time, lower refill frequency, and make day-to-day pool care easier without altering plumbing or equipment. This product is the cover only; the pool, pump, and accessories are sold separately.