18 ft x 36 ft Rectangle Solar Pool Cover - Heat Retaining Blanket

In this review of the Sun2Solar Clear 18 ft x 36 ft Rectangle Pool Solar Cover, the bottom line is simple: this cover is for pool owners who want an inexpensive, easy way to extend their swimming season and reduce maintenance. The reviewer found the main reason to buy is its steady heat retention and evaporation reduction; the cover uses free solar energy to warm water and keeps that warmth overnight, while also cutting back on water loss and debris. It is a practical, low-tech solution for both inground and above ground rectangular pools.

Key Features

• Free Solar Energy: The cover harnesses sunlight to raise pool water temperature by up to 15 degrees, shortening cool-season recovery times.
• Heat Retention: The solar blanket traps warmth after sunset so water temperature remains more consistent overnight.
• Evaporation Reduction: By reducing evaporation up to 95%, the cover lowers water top-ups and helps keep chemical levels steadier.
• Debris Prevention: The cover blocks leaves and surface debris, cutting time spent skimming and cleaning.
• Easy Installation: Durable design with extra overlap allows simple placement on rectangular inground and above ground pools and can be trimmed around protrusions.
• Grommet Reinforcement: Includes six heavy-duty grommets to assist anchoring or securing the cover where needed.

Who It's For

This cover suits homeowners with rectangular pools who want a low-cost, low-effort way to gain several degrees of water temperature and reduce nightly heat loss. It works well for seasonal use in spring and fall to extend comfortable swim days, and for everyday reduction of evaporation and debris in climates with regular sun.

Those who should look elsewhere include buyers seeking a permanent safety cover or an ultra-heavy-duty professional-grade tarp; some customers report seam and bubble durability issues under heavy stress, so pools exposed to sharp edges or very rough handling may need a reinforced commercial cover.

Pros & Cons

Pros

• Effectively raises and maintains pool temperature during sunny periods, improving swim comfort.
• Greatly reduces evaporation which saves water and reduces chemical adjustments.
• Simple to install and remove thanks to extra overlap and included grommets.
• Keeps out leaves and debris, lowering routine pool maintenance time.

Cons

• Some users report durability issues with seams and occasional loss of bubbles over time, so long-term toughness can vary.
• Not a safety cover; it will not support weight or replace rigid covers for child and pet safety.

Specifications

Brand	Sun2Solar
Model size	18 ft x 36 ft rectangle
Series	1200 Series
Includes	6 heavy-duty grommets
Use	Inground and above ground rectangular pools
Main benefits	Heat retention, evaporation reduction, debris prevention

Our Verdict

The Sun2Solar 18 ft x 36 ft rectangle solar cover is a solid value for pool owners who want warmer water, fewer top-offs, and less debris with minimal fuss. It performs well for seasonal heating and everyday evaporation control, but buyers should accept that it is a lightweight solar blanket rather than a heavy-duty safety cover.

Frequently Asked Questions

Will this cover fit both above ground and inground rectangular pools?
Yes, it is designed for both types and includes extra overlap so it can be trimmed to fit around protrusions.

How much warmer will my pool get?
The cover can raise water temperature by up to 15 degrees in sunny conditions, with many users reporting consistent 5 degree gains in regular use.

Does the cover prevent evaporation?
Yes, it reduces evaporation by up to 95%, which lowers water loss and reduces chemical adjustments.