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Swimming Pool Covers vs. Evaporation: A Water-Saving Showdown


A swimming pool is a source of endless joy, offering respite from the summer heat. But have you considered how evaporation can impact that joy? It’s a reminder of the delicate balance you must maintain.

On hot summer days, your swimming pool is a tempting retreat, but what you might not realize is that it’s losing water to evaporation. 

This seemingly minor process can lead to significant water loss, impacting both enjoyment and global water conservation efforts.

So, in this blog post, Designer Pool Covers (Cape Town) will help you explore the showdown between swimming pool covers and evaporation, exploring the science behind it and the benefits of pool covers.

Whether you’re a pool owner in Gauteng or elsewhere, we’ll equip you with the knowledge and solutions to save water, and money, and protect your beloved pool, ensuring it remains a refreshing oasis even in the face of relentless sun.

Understanding Water Evaporation

Water Evaporation refers to the natural process where water is converted into vapor and lost to the atmosphere.

In the world of pool maintenance, water evaporation can have a significant impact on water levels, chemical balance, and overall poor health.

When it comes to pool owners in Gauteng and the broader South Africa region, where water conservation is vital, understanding the effects of evaporation is paramount.

Pool covers, such as solar pool covers, safety nets, or solid covers, play a pivotal role in reducing this evaporation rate, helping pool owners save water, reduce the need for chemical adjustments, and maintain the pool’s overall quality.

In regions like Johannesburg, Pretoria, Cape Town, and Alberton, where water resources are valuable, this understanding becomes even more crucial in preserving this precious resource.

Factors that Influence the Rate of Evaporation

Swimming Pools Covers - Factors that Influence the Rate of Evaporation

The Role of Swimming Pool Covers

Swimming pool covers are not just accessories; they are essential tools for pool owners looking to save water and maintain a clean, safe, and energy-efficient pool.

Water Conservation: 

Swimming pool covers play a crucial role in conserving water by preventing evaporation. Evaporation is a major cause of water loss in pools and covers help reduce this significantly.

Evaporation Reduction: 

Pool covers create a barrier that inhibits water from evaporating into the atmosphere. This not only conserves water but also reduces the need for frequent refilling.

Energy Savings: 

In addition to saving water, pool covers also help save energy. They can help maintain the water temperature by preventing heat loss, reducing the need for additional heating, and saving on energy costs.

Chemical Usage: 

Using a pool cover can lead to a reduction in the need for pool chemicals. With less water loss through evaporation, the chemical balance in the pool remains more stable.

Cleaner Pool: 

Covers also act as a shield against debris, leaves, and dirt, keeping your pool cleaner and reducing the time and effort required for maintenance.


Some pool covers, like safety nets and solid safety covers, provide an additional layer of protection, especially for families with children and pets, preventing accidents and potential hazards.

Stylish Options: 

Pool covers come in various styles, including automatic covers and solar blankets, which not only provide functionality but also add a stylish element to your pool area.


High-quality pool covers are durable and can bear the weight of leaves, debris, and even children and pets, making them a long-term investment for pool owners.

Environmental Impact: 

By reducing water evaporation, pool covers contribute to environmental conservation by limiting the need for freshwater refilling, which is essential in water-scarce regions like Gauteng and Cape Town.

Personalized Service: 

Suppliers and installers in Gauteng, Johannesburg, Pretoria, and other regions offer personalized services to help you choose the right pool cover that suits your needs and preferences.

So, swimming pool covers play a significant role in water conservation, energy savings, pool maintenance, safety, and environmental impact. They are a valuable addition to any pool, helping pool owners across South Africa reduce water evaporation and its associated consequences.

The Battle: Pool Covers vs. Evaporation

In the ongoing battle to preserve water in swimming pools, the choice between pool covers and the natural process of evaporation becomes a pivotal decision for pool owners.

Pool covers, whether solid or safety nets, offer an effective defense against water loss, shielding the pool’s surface and significantly reducing evaporation rates. This not only conserves a precious resource but also reduces the need for frequent refilling, ultimately saving time and money on water and chemical expenses.

On the other hand, evaporation, driven by factors like temperature, humidity, and wind, poses a constant challenge to pool water conservation.

This showdown highlights the importance of pool covers in maintaining the water levels, ensuring pool safety, and minimizing the environmental impact, making them a smart investment for pool owners concerned about sustainability and cost-efficiency.

Evaporation-Reducing Technologies

Here are some Key points emphasizing Evaporation-Reducing Technologies to help you make a decision that best suits your pool, budget, and environmental concerns.

Solar Pool Covers:

Solar pool covers, also known as solar blankets, are designed to capture and retain heat from the sun. They not only help maintain the water temperature but also significantly reduce evaporation.

Automatic Pool Covers:

Automatic pool covers are motorized systems that cover and uncover your pool with ease. When closed, they act as an effective barrier against evaporation and debris, helping to conserve water.

Safety Pool Covers:

Safety pool covers serve a dual purpose by providing safety for children and pets while also reducing evaporation. These covers are typically made from sturdy materials that create a barrier over the pool.

Solid Pool Covers:

Solid pool covers are excellent at preventing sunlight and air from reaching the pool water, which can greatly reduce evaporation rates.

Leaf Catchers and Nets:

Installing leaf catchers or nets alongside your pool cover can further protect the pool from leaves and debris, minimizing the need for additional water due to evaporation.

Bubble Wrap or Bubble Blankets:

Bubble wrap or bubble blankets, when placed on the water’s surface, create an insulating layer that reduces water evaporation and retains heat.

PVC Pool Covers:

PVC pool covers, made from durable PVC material, are effective at reducing evaporation. They are easy to install and remove, making them a practical choice.

High-Quality Materials:

Choosing high-quality pool covers and materials ensures better performance in reducing evaporation and extending the life of the cover.

Competitive Pricing:

Evaluate different options to find the most cost-effective evaporation-reducing technology that suits your pool and budget.

Personal Service and Installation:

Seek professional assistance for the installation of pool covers and evaporation-reducing technologies to ensure they are fitted correctly and provide optimal water-saving benefits.

Maintenance and Regular Use:

Regularly using and maintaining your chosen evaporation-reducing technology is essential to maximize water savings and minimize the risk of evaporation-related water loss.

Environmental Benefits:

Aside from water conservation, reducing pool water evaporation also helps in limiting the consumption of chemicals and energy used for pool maintenance.

Obstruction and Stylish Options:

Some pool covers may obstruct your view, while others are designed with style in mind. Choose an option that meets your aesthetic preferences while still effectively reducing evaporation.

Adaptability to Pool Shapes and Sizes:

Ensure that the chosen technology is suitable for the size and shape of your pool to achieve the best results.

Safety for Children and Pets:

Safety pool covers not only reduce evaporation but also act as a barrier, preventing potential hazards for children and pets.

Preventing Algae Growth:

A covered pool is less susceptible to algae growth, which can result from exposure to sunlight and airborne contaminants.

Rainwater Management:

Some pool covers are designed to allow rainwater to pass through, replenishing the pool while still reducing overall evaporation.

How you can achieve economic savings by Reducing the rate of Pool Water Evaporation?

Swimming Pools Covers - How you can achieve economic savings by Reducing the rate of Pool Water Evaporation?

Frequently Asked Questions (FAQs)

How much Water Evaporates from a Pool with a Cover?

Swimming pool covers are highly effective in reducing water evaporation. A covered pool can significantly cut down on evaporation, conserving water and reducing the need for frequent refills.

The exact amount of water saved varies depending on various factors, such as the type of cover, weather conditions, and the pool’s size and shape. However, it’s safe to say that using a pool cover can help save a substantial amount of water compared to an uncovered pool.

What is the best Pool Cover to Prevent Evaporation?

The best pool cover to prevent evaporation is a solid pool cover.

Solid covers create an impermeable barrier that not only prevents water from evaporating but also provides additional benefits such as keeping debris out of the pool, restricting algae growth, and enhancing safety.

They come in various materials, including durable PVC, and can be easily tensioned to fit different pool shapes and sizes. Solid pool covers offer a high level of water conservation and is a top choice for pool owners looking to reduce evaporation effectively.

To Conclude – Swimming Pool Cover vs. Evaporation

Concluding this exploration of the battle between swimming pool covers and evaporation, it’s clear that the choice you make for your pool can have a substantial impact on water conservation and your pocket.

By understanding the science of evaporation and the benefits of pool covers, you’ve taken a crucial step toward making informed decisions for your pool.

Whether you opt for a safety cover, a solar cover, or other evaporation-reducing technologies, your choice can not only save water but also enhance safety, reduce maintenance, and protect your cherished oasis.

So, as you enjoy the cool waters of your pool on that next scorching day, remember that you’re not only cooling off but also making a difference in the global effort to conserve our most precious resource.

Cheers to a well-preserved pool, more savings, and a better future for our planet!