If you’re a pool owner, you’ve probably heard of bubble wrap pool covers. They look familiar—like the plastic packaging material we all handle—but are they actually effective for pool maintenance and heating? This article dives deep into the world of bubble wrap pool covers, explaining how they work, their pros and cons, and whether they truly offer value compared to traditional pool covers.
Understanding Bubble Wrap Pool Covers
Bubble wrap, traditionally used as a protective packaging material for fragile items, has found a new use in the pool industry. A bubble wrap pool cover, sometimes called a solar blanket, is a thin sheet made of UV-stable polyethylene with evenly spaced air bubbles. These covers are typically used to cover outdoor swimming pools, especially when they are not in use.
How Do Bubble Wrap Pool Covers Work?
The principle behind bubble wrap pool covers is based on solar heating and thermal insulation. When laid on the surface of the pool water:
- The air bubbles trap heat from the sun, absorbing solar radiation and transferring it to the water below.
- At night or during cloudy days, the cover acts as a barrier to reduce heat loss by minimizing evaporation and insulating the water.
The result is a gradual increase in pool temperature, which can make the water more comfortable to swim in without the need for an external heater. Because of this, bubble wrap covers are often used in conjunction with or as an alternative to dedicated pool heating systems.
Are Bubble Wrap Pool Covers Effective?
Yes, bubble wrap pool covers are effective—but their efficiency depends on several factors, including how they’re used, the climate, and the type of pool.
Temperature Increase
On average, bubble wrap solar covers can raise the temperature of a pool by 8–15°F (4–8°C). This is particularly useful in moderate climates where pool temperatures might otherwise hover around the lower end of comfort (say, 65°F). However, in colder regions, they might not bring the pool to a consistently swim-friendly temperature without supplemental heating.
Evaporation and Chemical Loss
One of the most significant benefits of using a bubble wrap cover is its ability to reduce evaporation. According to the U.S. Department of Energy, up to 70% of a swimming pool’s heat loss comes from evaporation. Covering the pool with a bubble wrap sheet:
- Reduces evaporation by up to 95%
- Preserves chemicals like chlorine by preventing off-gassing
- Keeps out debris, reducing cleaning time and strain on the filtration system
Cost-Effectiveness
Compared to other pool heating options—like gas heaters, heat pumps, or even solar rings—bubble wrap pool covers are relatively inexpensive. Depending on the size and quality, covers can range from $50 to $200, making them an affordable and accessible solution for many recreational pool owners.
Types of Bubble Wrap Pool Covers
Not all bubble wrap covers are created equal. When selecting one, it’s important to understand the available options and choose the one best suited to your pool:
Clear vs. Blue Solar Blankets
| Type | Features | Best For |
|---|---|---|
| Clear Bubble Wrap | Allows maximum sunlight penetration | Heating pools in areas with lower sunlight or during shorter seasons |
| Blue Solar Wrap | Ultraviolet-stabilized with a tint that helps absorb and retain heat | Long-term durability and stable heating in sunny regions |
Thickness and Bubble Size
Standard bubble wrap pool covers come in thicknesses from 4 to 16 mils (0.001-inch increments). The larger the bubbles and the thicker the material, the more effective the cover will be at insulating and heating the water. However, thicker covers are also heavier and more difficult to handle.
How To Use Bubble Wrap Pool Covers Properly
Using a solar cover effectively goes beyond just throwing it onto your pool. For the best results, follow these usage tips:
Lay it Bubbles-Down
Always place the cover with the bubble side down. This allows the bubbles to come into direct contact with the pool water and transfer heat more efficiently.
Cover When Not in Use
The best times to use a solar cover are when the pool is not in use—especially overnight and during cloudy weather. This helps retain heat and prevent evaporation during non-swimming hours.
Use a Solar Cover Reel
Rolling and unrolling a solar cover can become tedious, especially with larger pools. A solar cover reel provides a convenient way to deploy or remove the cover quickly and safely.
Clean and Maintain the Cover
Over time, the cover can accumulate dirt, chlorine residue, oils, and minerals from the water. Wipe it down occasionally with a soft cloth and mild detergent to prolong its life and effectiveness.
Pros and Cons of Bubble Wrap Pool Covers
To better understand the functionality and practicality of bubble wrap pool covers, let’s examine the advantages and disadvantages.
Pros
- Cost-Effective: Much cheaper than installing dedicated heating systems.
- Easy to Use: Lightweight and easy to handle for most pool owners.
- Improves Water Temperature: Helps raise pool temperatures significantly during daylight hours.
- Reduces Chemical Usage: Limits chlorine and other chemical loss due to evaporation.
- Energy-Efficient: Uses free solar energy for pool heating.
Cons
- Limited Heating Power: Can’t heat the pool to swimmable temperatures in cold climates all by itself.
- Durability Issues: Lower-quality covers may degrade after a few seasons.
- Maintenance Required: Must be rolled, stored, and cleaned properly.
- Not Suitable for Heavy Use: Can be dangerous if left on while swimming due to slipperiness and entanglement risk.
- Environmental Concern: Often made of plastic, contributing to waste if frequently replaced.
Alternatives to Bubble Wrap Pool Covers
While bubble wrap may provide some value, there are other pool heating and covering options available:
Solar Pool Covers (High-Grade)
These are professionally designed solar blankets made with thick, UV-stabilized polyethylene. They are more durable, efficient, and sometimes come with built-in insulation layers.
Solar Pool Heaters
These use solar panels to heat water thermally. They are more expensive to install but more effective at heating larger pools. Ideal for year-round pool climates.
Automatic Pool Covers
Electrically operated and highly effective, automatic covers prevent evaporation and provide safety. They are more expensive but offer convenience, energy savings, and security benefits.
Heat Pumps and Gas Heaters
For consistent, controlled heating regardless of the sun’s presence, gas heaters and heat pumps are highly effective. Though more expensive to operate, they are indispensable for commercial or serious residential pool owners.
Solar Rings and Liquid Solar Blankets
Solar rings float independently on the pool surface and capture solar energy. Liquid solar blankets create a thin, invisible layer on the water surface to prevent evaporation. Both options offer different trade-offs in terms of cost, effectiveness, and maintenance.
Expert Recommendations and User Experiences
According to surveys from recreational pool forums and homeowner groups, approximately 68% of pool owners who use bubble wrap covers report satisfaction, especially during spring and summer months. These covers are praised for their affordability and solar efficiency.
On commercial pool maintenance sites, professionals often recommend combining bubble wrap solar blankets with a backup heater for best results. For example, some suggest using a gas heater to raise pool temperature initially, then relying on solar blankets to maintain that temperature.
Installation, Handling, and Safety Considerations
Installation Steps
- Ensure the pool water level is halfway up the skimmer.
- Unroll the cover over the pool, ensuring it lays flat.
- Trim excess edges to avoid overlapping or gaps.
- Use a reel or cover pump to remove standing water and facilitate storage.
Handling Tips
- Use gloves: To avoid sharp edges on the pool coping from tearing the film.
- Store in the shade: UV exposure can degrade the plastic even when not in use.
- Avoid dragging: Over rough surfaces like concrete, as this can puncture the material.
Safety Concerns
- Never allow children or pets near a floating pool cover unless it’s specifically designed for safety.
- Never swim under the cover. It can lead to accidental entrapment, injury, or drowning.
- Always ensure the cover is fully removed and stored securely before allowing pool use.
Environmental Considerations
One area of concern with bubble wrap solar blankets is plastic waste. Most of these covers are made from non-recyclable polyethylene and may end up in landfills after several seasons of use. However, they do contribute to energy efficiency by reducing reliance on fossil fuels and electricity for pool heating.
Some companies are now developing biodegradable or reusable versions of solar blankets, although these options remain more expensive and less widely available.
Conclusion: Are Bubble Wrap Pool Covers Worth It?
In short, yes, bubble wrap pool covers work. They are effective tools for warming pool water using solar energy, reducing evaporation, preserving chemicals, and protecting against debris. They are best suited for:
- Pools in moderate to sunny climates
- Those looking to reduce heating costs
- Owners wanting an eco-friendly alternative or supplement to other heating systems
While they come with limitations—you can’t swim in the pool with the cover on, they can degrade over time, and they aren’t sufficient as a sole heating solution in cold regions—they offer a versatile, affordable, and sustainable method for managing pool temperature and maintenance.
Before purchasing, assess your climate, usage habits, and budget. For the best investment, pair your bubble wrap cover with other strategies like pool heat pumps or solar heaters for optimal water temperature and efficiency.
Whether you’re a casual backyard pool owner or a seasonal swimmer looking to get more from your outdoor pool, a solar bubble wrap cover can be a valuable addition to your pool care toolkit.
Final Thoughts
As pool technology continues to evolve, so do our options. Bubble wrap pool covers have evolved from an experimental idea into a widely accepted method of pool heating and conservation. Although not the most advanced or durable pool cover option, they continue to serve a crucial function in the market—especially for recreational pool owners looking to save money and energy.
If you’re trying to answer the question “Do bubble wrap pool covers work?”—this guide should make it clear that the answer is yes, but with caveats. Understanding how they work, using them properly, and managing expectations based on climate and pool size will ensure you get the most out of this simple, innovative tool.
Choose carefully, maintain it well, and your summer dips could be a lot cozier—and cheaper—than ever before.
Do bubble wrap pool covers actually work to keep pools clean and warm?
Yes, bubble wrap pool covers can be effective for certain pool maintenance tasks, especially when it comes to retaining heat. The clear plastic bubbles act like tiny greenhouses, trapping solar energy and transferring that warmth into the pool water. This can help raise the water temperature by several degrees, making it a cost-effective solution for pool owners looking to extend their swimming season without investing in a heater.
However, their effectiveness in keeping the pool clean is somewhat limited. While they can reduce the amount of debris and leaves that enter the pool when the cover is fully deployed, their open-cell structure may not provide a complete barrier against dirt, insects, or dust. In areas with high pollen or windblown debris, additional measures may still be required to maintain pool cleanliness.
How do bubble wrap pool covers compare to traditional solid vinyl covers?
Bubble wrap pool covers and traditional solid vinyl covers serve different purposes and vary significantly in their functionality and effectiveness. Bubble wrap covers, also known as solar blankets, are designed primarily to retain heat and reduce evaporation. Their translucent material allows sunlight to pass through and heat the water below. In contrast, solid vinyl covers are excellent at blocking sunlight entirely and are often used for winterizing pools or ensuring debris-free water when the pool is not in use.
In terms of heat retention and chemical savings, bubble wrap covers have an advantage, especially during the swim season. Solid covers, while better for safety and cleanliness over long periods, don’t offer the same solar heating benefits. Pool owners should choose based on their specific needs—whether it’s season extension, temperature control, or debris prevention.
Can using a bubble wrap pool cover reduce chemical usage?
Yes, bubble wrap pool covers can help reduce chemical usage in a pool by serving as a barrier that limits evaporation and lowers the rate at which water temperature fluctuates. By reducing evaporation, these covers help retain pool chemicals that would otherwise be lost when water levels drop. This stabilization of water chemistry can lead to fewer chemical adjustments and less frequent additions of chlorine or algaecide.
Additionally, maintaining a more consistent water temperature and reducing exposure to rain and contaminants can help in preventing algae growth and keeping pH balance more stable. While bubble wrap covers won’t eliminate the need for chemical treatment, they can make pool maintenance more efficient and environmentally friendly by minimizing water waste and chemical consumption.
Are bubble wrap pool covers suitable for all types of pools?
Bubble wrap pool covers, or solar blankets, are generally suitable for most in-ground and above-ground pools, but their effectiveness may vary depending on the pool’s size, shape, and usage. Ideally, they should cover the entire surface of the pool to maximize heat retention and evaporation reduction. Custom-cut covers are available for pools with unusual shapes, but some trial and error may be needed to ensure a snug and effective fit.
For saltwater pools and those with automatic pool cleaners, extra care should be taken, as the plastic material can be damaged more easily by harsh chemicals or the movement of robotic cleaners. Ultimately, while most pool types can benefit from using a bubble wrap cover, owners should assess compatibility with their pool system and maintenance routine to maximize longevity and performance.
How long do bubble wrap pool covers typically last?
The lifespan of a bubble wrap pool cover depends on several factors including material quality, exposure to sunlight, chemical contact, and how well it is maintained. On average, a high-quality solar blanket can last between 3 to 5 years if properly cared for. Over time, UV rays and chemicals in the water can break down the plastic, causing it to become brittle and less effective. Storing the cover properly when not in use can help prolong its life.
To extend durability, pool owners should always remove the cover when adding chemicals to the pool and use a reel system to keep the blanket rolled and protected. Avoiding direct contact with chlorine tablets or bromine is especially important since these can degrade the bubble wrap faster. With good care, a solar cover can be a worthwhile investment that pays for itself over multiple seasons.
What are some alternatives to bubble wrap pool covers for heating and cleaning a pool?
For pool owners seeking alternatives to bubble wrap covers, options include liquid solar pool covers, solid thermal blankets, pool heat pumps, gas heaters, and solar panel arrays. Liquid solar covers are a chemical-based alternative that forms a thin, invisible layer on the water surface to reduce evaporation and heat loss. Solid thermal blankets provide better insulation than bubble wrap covers but do not allow sunlight to pass through.
Heat pumps and gas heaters offer effective but typically more costly temperature control solutions, while solar panels—especially solar pool heating systems—allow for efficient energy usage. When it comes to pool cleaning, automatic pool cleaners, leaf nets, and mesh safety covers can be used alongside or instead of bubble wrap covers, depending on the desired level of protection and ease of maintenance.
Can you swim with a bubble wrap pool cover on the pool?
It is not recommended to swim in a pool while the bubble wrap pool cover is in place. These covers, also known as solar blankets, are not designed to support weight and can tear or degrade under pressure, especially from feet or hands. Moreover, leaving them on while swimming may cause them to become tangled with swimmers or equipment, posing a safety hazard.
Additionally, when the cover is left on during swimming, it can trap heat and chlorine gases against the water surface, potentially reducing the effectiveness of both the chemical treatment and the cover itself. If pool heating or chemical conservation is the goal, the safest and most effective approach is to remove the cover while the pool is in use and replace it afterward to maintain temperature and prevent evaporation.