Using a Solar Pool Cover: Efficient Guide to Save Energy & Money

Discover the efficient way to harness the sun’s energy for heating and maintaining your pool with a solar pool cover in this comprehensive guide.

As the summer season approaches, we all look forward to spending more time outdoors and enjoying our swimming pools. However, did you know that using a solar pool cover can not only extend your swimming season but also save you money? Solar pool covers are an eco-friendly and cost-effective way to keep your pool warm and clean while reducing water evaporation.

In this article, we will explore how to use a solar pool cover effectively and get the most out of this simple yet powerful tool. So let’s dive in!

What Is a Solar Cover?

using a solar pool cover efficient guide to save energy amp money

A solar pool cover, also known as a solar blanket or thermal cover, is a large sheet of material that floats on the surface of your swimming pool. It is designed to capture and retain the sun’s heat, warming up your pool water naturally without using any electricity or gas.

Solar covers are made from durable materials such as polyethylene and vinyl and come in various sizes to fit different types of pools.

The primary function of a solar cover is to reduce heat loss through evaporation by trapping the warmth generated by sunlight during the day. This helps maintain consistent water temperature throughout the day and night while reducing energy costs associated with heating your swimming pool.

In addition to keeping your pool warm, solar covers also help keep debris out of your swimming area while minimizing chemical use since they prevent evaporation which can lead to imbalanced pH levels in pools.

Types of Solar Pool Covers

The most common types are:

1. Bubble solar covers: These are the most popular type of solar pool cover due to their affordability and effectiveness in retaining heat.

They have a bubble wrap-like texture that traps the sun’s heat, preventing it from escaping.

2. Liquid solar covers: This type is made up of a liquid chemical that forms an invisible layer on top of your pool water to reduce evaporation and retain heat.

3. Mesh solar covers: These are designed for safety purposes as they prevent debris from entering your swimming pool while still allowing sunlight to penetrate through them.

4. Thermal blankets: Made from heavy-duty materials such as polyethylene foam or vinyl, thermal blankets provide excellent insulation by trapping warm air between the blanket and water surface.

Benefits of Solar Pool Covers

Firstly, they are an eco-friendly option that harnesses the sun’s energy to heat your pool water naturally. This means you can reduce your carbon footprint and save money on energy bills at the same time.

Secondly, solar covers help to retain heat in your swimming pool by preventing evaporation of water from its surface. By reducing evaporation, you can minimize heat loss and keep your swimming season going longer into the year.

Thirdly, a solar cover helps keep debris out of your swimming pool while also reducing chemical use by up to 35%. This is because less debris enters the water when it is covered with a solar blanket which reduces demand for chemicals like chlorine or algaecides.

Using a solar cover will help protect against UV rays which can damage both swimmers’ skin and equipment such as ladders or diving boards over time.

Choosing the Right Solar Pool Cover

The first thing you should think about is the type of cover that will work best for your needs. There are three main types of solar pool covers: bubble covers, liquid solar covers, and panel systems.

Bubble covers are the most common type of solar pool cover and feature small bubbles on one side that face down into the water. These bubbles trap heat from sunlight and transfer it to your swimming pool while also reducing evaporation.

Liquid solar covers consist of a chemical solution that forms an invisible layer on top of your swimming pool’s surface when poured in. This layer helps retain heat by preventing water evaporation.

Panel systems use large panels made up of tubes or channels filled with water or air which absorb sunlight during daylight hours then circulate warm fluid back into your swimming pools at night time keeping them warm throughout colder months.

How to Size Your Solar Cover

A properly sized solar cover will not only keep your pool warm but also reduce water evaporation, chemical usage, and debris accumulation. To determine the correct size of your solar pool cover, measure the length and width of your swimming pool at its widest points.

Add an additional 1-2 feet on each side to allow for proper coverage over the edges of the water surface.

It’s important to note that most manufacturers offer standard sizes for their covers; however, if you have a uniquely shaped or custom-sized swimming pool, you may need a customized solution. In this case, it’s best to consult with a professional installer who can help you choose or create a suitable option.

Installing a Solar Pool Cover

The installation process is relatively simple and can be done in just a few steps.

First, make sure your pool is clean and free of debris. Remove any leaves or dirt from the surface of the water before placing the cover on top.

Next, unroll your solar cover over the entire surface area of your swimming pool. Make sure that there are no wrinkles or folds in the material as this can affect its effectiveness.

If necessary, trim any excess material using scissors or a utility knife to fit around ladders or other obstructions on your deck.

Secure one end of the cover with clips provided by sliding them onto either side at regular intervals along one edge while pulling taut across until reaching opposite side then repeating clip placement process again before trimming off excess length if needed so that both sides match up evenly when clipped together tightly enough not to allow wind gusts under edges causing lift-off during windy conditions which could damage equipment nearby such as pumps etcetera!

Properly Using Your Solar Pool Cover

The first step is to remove any debris from the surface of your pool before covering it. This will prevent leaves and other debris from getting trapped under the cover and potentially damaging it.

When placing your solar pool cover on top of the water, make sure that there are no wrinkles or air pockets underneath. These can cause heat loss and reduce efficiency by allowing cold air into contact with warm water.

It’s also important not to leave your solar pool cover on for too long during hot weather as this can lead to overheating in some cases. A good rule of thumb is only leaving a covered swimming pool exposed for 4-6 hours per day during peak sunlight hours.

When removing or storing your solar pool cover, be gentle with its material so as not damage any bubbles or seams which could affect performance over time.

Should I Cover My Entire Swimming Pool?

The answer depends on your specific needs and preferences. If you want to keep your pool warm and reduce water evaporation, covering the entire surface area of the pool is recommended.

However, if you prefer to have some areas of your swimming pool exposed for aesthetic reasons or other purposes, then covering only part of it may be more suitable.

It’s worth noting that while covering the whole surface area will provide maximum benefits in terms of heat retention and water conservation, it also requires more effort when installing and removing the cover. Larger covers can be heavier and harder to handle than smaller ones.

Do the Bubbles Go Up or Down?

The answer is simple: the bubbles should always face down towards your pool water. This allows them to trap heat and prevent evaporation by creating an insulating layer between your pool water and the outside air.

The bubble side of a solar cover has been designed specifically for this purpose, so make sure you install it correctly. If you accidentally install your solar cover with the bubbles facing upwards, they will not be able to trap heat effectively and may even cause damage over time due to exposure from UV rays.

If you have pets or children who use your swimming pool frequently, having the bubble side facing up can create a tripping hazard as they walk across it.

Can I Cut My Solar Cover?

The answer is yes, you can! In fact, most solar covers are designed with a little extra material around the edges precisely for this purpose.

However, before cutting your cover, make sure you measure your pool accurately and mark the areas where you need to trim. It’s also essential that you use sharp scissors or a utility knife and follow the manufacturer’s instructions carefully.

Keep in mind that cutting your solar cover may void its warranty if not done correctly. So be cautious when making any modifications and double-check everything before proceeding.

What Accessories Can I Use With My Solar Cover?

One popular accessory is a reel system, which makes it easier to remove and store the cover when not in use. Reels come in different sizes and styles, so make sure you choose one that fits your pool size and type of solar cover.

Another useful accessory is a solar blanket holder or saddle, which keeps the folded-up cover off the ground while you’re swimming. This prevents dirt and debris from sticking to it, making cleaning much easier.

If you have an irregularly shaped pool or obstacles such as steps or ladders that prevent full coverage with a standard-sized solar pool cover, consider getting custom-made covers for those areas. These are designed to fit perfectly around any shape or obstacle without compromising on efficiency.

If you live in an area with high winds or storms frequently occur during summer months; consider investing in wind clips that hold down your Solar Pool Cover securely even during strong gusts of wind.

Solar Pool Cover Safety Tips

Here are some tips for safe use of your solar pool cover:

1. Always remove the cover completely before swimming: Never attempt to swim under or through the cover as this can be dangerous and potentially life-threatening.

2. Keep children and pets away from the uncovered pool: When you’re not using your covered swimming area, make sure that children and pets stay away from it.

3. Use a reel system for easy removal: A reel system makes removing your solar cover much easier while also reducing wear on the material.

4. Store safely when not in use: Proper storage is essential for maintaining both safety and longevity of your solar pool cover.

Solar Pool Cover Maintenance

Regular maintenance will also help prevent damage caused by debris, UV rays, and harsh weather conditions.

To keep your solar pool cover in good condition, remove any leaves or debris that accumulate on the surface regularly. Use a soft brush or leaf blower to gently sweep off any dirt or dust particles that may have settled on the cover.

It’s also crucial not to let water accumulate on top of the solar pool cover for an extended period as this can cause mold growth and weaken its material. To avoid this problem, use a pump or siphon hose periodically to drain excess water from the surface of your swimming pool’s solar blanket.

Lastly, store your solar pool cover correctly when not in use during colder months. Clean it thoroughly before folding it neatly into storage bags designed specifically for these covers.

Caring for Your Solar Cover

Here are some tips on how to keep your solar cover in top condition:

1. Clean the Cover: Regularly clean the surface of your solar pool cover with a soft brush or sponge and mild soap solution.

Avoid using harsh chemicals or abrasive cleaners that can damage the material.

2. Remove Debris: Use a leaf net or skimmer to remove any debris such as leaves, twigs, and insects from the surface of your pool before covering it with a solar blanket.

3. Store Properly: When not in use during off-seasons like winter months, store your solar blanket properly by rolling it up neatly and placing it in its storage bag away from direct sunlight.

4. Repair Damage Promptly: If you notice any tears or holes on the surface of your cover while cleaning them out after use; repair them promptly using patch kits available at most hardware stores.

Storing Your Solar Pool Cover

This will help extend its lifespan and ensure that it remains in good condition for next year’s use.

Firstly, remove any debris or dirt from the cover using a soft brush or hose. Allow it to dry completely before folding and storing it away.

It is important not to fold your solar pool cover when wet as this can cause mold growth and damage.

Next, fold the cover neatly into a compact size that fits easily into its storage bag or container. Avoid creasing by alternating folds in opposite directions.

Store your solar pool cover in a cool, dry place away from direct sunlight and heat sources such as heaters or furnaces. If possible, hang the folded-up covers on hooks so they don’t get crushed under other items during storage.

Reducing Pool Water Evaporation

Without a cover, your pool can lose up to an inch or more of water per week due to evaporation. This not only wastes precious resources but also increases your water bill and chemical usage.

A solar pool cover helps reduce this loss by trapping the heat in the pool and preventing it from escaping into the air. As a result, less moisture evaporates from your swimming pool, which means you’ll need to refill it less often.

In addition to saving money on utility bills and conserving resources, reducing evaporation also helps maintain proper chemical balance in your swimming pool. When too much water evaporates from your swimming area, chemicals become concentrated leading to imbalanced pH levels that can cause skin irritation or damage equipment over time.

Extending Your Swimming Season

With a solar pool cover, you can start enjoying your pool earlier in the spring and continue to swim well into autumn. The sun’s energy heats up the water during the day, and then at night, when temperatures drop, the cover traps that heat inside.

The amount of time you can extend your swimming season depends on several factors such as where you live and how much sunlight exposure your pool gets. However, with proper use of a solar pool cover along with other heating methods like gas or electric heaters or heat pumps if necessary -you may be able to enjoy an additional month or two in comfortable water temperature.

Cost and ROI of Solar Pool Covers

The cost of a solar pool cover varies depending on the size and type of cover you choose. However, it’s important to consider the return on investment (ROI) when making your decision.

Solar pool covers can help reduce energy costs by keeping your water warm without relying solely on a heater or pump. They can decrease chemical usage and water evaporation which means less time spent refilling your pool.

The ROI for a solar pool cover depends on several factors such as location, climate conditions and how often you use your swimming pool. In general, most homeowners see their initial investment returned within two years due to savings in energy bills and maintenance costs.

When considering purchasing a solar cover for your swimming pool be sure to factor in its lifespan which is typically around 3-5 years with proper care before needing replacement.

Solar Pool Cover Alternatives

Fortunately, there are several alternatives to consider.

One alternative is a liquid solar cover. This product creates a thin layer on top of the water that reduces evaporation and heat loss.

It’s easy to use – simply pour it into your pool according to the instructions on the label.

Another option is an electric or gas-powered heater. These heaters can quickly warm up your pool water but come with higher upfront costs and ongoing energy expenses.

If you’re looking for a more natural solution, consider planting trees or installing windbreaks around your swimming area to reduce wind exposure and heat loss from evaporation.

Ultimately, choosing which method works best depends on factors such as budget, climate conditions in your area, personal preferences regarding environmental impact versus convenience.


How should you use a solar cover on a pool?

Use a solar cover on a pool by placing it on the pool surface whenever it is not in use, both during the day to maximize heat absorption and at night to reduce evaporation and heat loss.

Should you run your pool pump with the solar cover on?

Yes, it is recommended to run your pool pump with the solar cover on, as it conserves energy and extends the lifespan of the pump without affecting water circulation.

How long does it take to heat a pool with a solar cover?

A solar cover can heat a fully covered pool by 10-15 degrees in about 6 hours or by 7-10 degrees with three consecutive days of sun.

What are the best ways to maintain and store a solar pool cover?

To maintain and store a solar pool cover best, clean it with fresh water, let it dry, and store it away from direct sunlight rolled up or on a reel.

How do different types of solar pool covers compare in terms of efficiency and durability?

Efficiency-wise, clear solar pool covers let in more sunlight to heat the pool, while durability-wise, darker covers tend to last longer; ultimately, clear covers offer better heating, and darker covers provide superior endurance.

Are there any potential safety hazards or precautions to consider when using a solar pool cover?

Yes, potential safety hazards or precautions to consider when using a solar pool cover include ensuring it is secured and removed before swimming, as it may pose a risk of entrapment or drowning.

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