arrow_backBack

Convert chlorine pool to natural pool or swimming pond

The idea of transforming an existing traditional pool into a sustainable, low-maintenance, and beautiful natural swimming pond is growing in both Europe and Scandinavia.

Convert chlorine pool to natural pool or swimming pond

Do you have a neglected and lifeless pool that needs a new life?

In this article, we will go through the benefits, process, and inspiring real examples of how traditional pools can be transformed into natural ecosystems. We will also highlight projects from certified Aquascape contractors, a global network of skilled water landscape professionals trained to create these types of natural transformations.

Why convert a traditional pool?

Traditional pools require ongoing maintenance, chemical treatment, and energy-consuming filtration systems. Homeowners often face challenges such as:

  • High electricity and water consumption.
  • Contact with chemicals that can irritate eyes and skin.
  • Unattractive pool covers during the off-season.
  • A sense that the pool is disconnected from the surrounding nature.
Neglected chlorine pool before conversion

A natural swimming pond, on the other hand, offers:

  • Chemical-free water purified by plants and beneficial bacteria.
  • Energy efficiency through smart circulation.
  • Increased biodiversity as the pond becomes a habitat for frogs, dragonflies, and birds.
  • Beauty year-round that transforms the garden into a living landscape.
Natural pool after conversion with clear water

What is a natural pool?

A natural swimming pond, also called an ecosystem pond, is designed to work with nature rather than against it. Unlike traditional pools that rely on chemicals, these systems function as a closed loop where the water is purified through natural biological processes. The pond is often divided into two main zones: a deeper swimming zone for bathing and recreation, and a shallower regeneration zone with aquatic plants that filter and oxygenate the water.

In addition to these zones, complementary systems help maintain clarity and balance. Skimmers and biological filters remove debris and support beneficial bacteria, while gravel beds provide surfaces for microorganisms to thrive. Aeration systems ensure that the water maintains proper oxygen levels. Together, these components create a self-sustaining ecosystem that operates much like a natural lake or stream, with clean and clear water year-round.

The conversion process step by step.

Here is an overview of what a typical project may include.

Assessment and planning.

  • Evaluate the existing pool's structure, concrete, and plumbing.
  • Develop a new layout with regeneration zones and any streams.
  • Consider location, sunlight, and surrounding landscape.

Demolition or reshaping.

  • Drain the pool and remove unnecessary connections and details.
  • Soften hard angles or reshape the bottom for a more natural expression.

Installation of filtration.

  • Excavate areas for intake bay, streams, and wetland filters.
  • Install Aquascape pumps and EcoBlox if pond-free elements are desired.
  • Add natural stone to give the old pool a more natural appearance.

Regeneration zone and planting

  • Cover the zone with gravel.
  • Plant aquatic plants such as water lilies, reeds, and oxygenating underwater plants.

Filling and commissioning

  • Fill the pond with water.
  • Allow the ecosystem to stabilize, which can take about two weeks depending on size.

Final details

  • Add edge plants, lighting, and social areas such as fire pits or patios.
  • Introduce fish if it suits the project.
Natural swimming pond with biological filtration

Real transformations from certified Aquascape contractors

Atlantis Water Gardens (New Jersey, USA)

Greg Wittstock, founder of Aquascape, often showcases work from leading certified contractors like Atlantis Water Gardens. One of their notable projects was a complete conversion of a rectangular chlorine pool into a kidney-shaped ecosystem pond with a waterfall and a large regeneration zone. The project demonstrated how even restrictive pool shapes can be reinterpreted with creative design.

"We took a pool that was falling apart and turned it into a paradise. The family now swims with koi, frogs, and turtles, and they don't miss chlorine for a second," says Atlantis co-founder Jack Chernick.

Living Ponds (Oregon, USA)

Living Ponds converted an older garden pool into a multi-level ecosystem with stream beds and wetland filtration. By reusing large parts of the original plumbing and adapting the concrete shell, they were able to reduce both costs and waste.

"We believe in building with nature, not against it. This transformation created an educational habitat for the homeowners' children," said the project manager.

Premier Aquascapes (Indiana, USA)

Premier Aquascapes conducted a large-scale pool conversion on a rural property. The project included rainwater harvesting and a swimming zone fed by a waterfall. They used components from Aquascape's Signature Series to ensure reliability and longevity.

"Our goal was to create a recreational area that felt like a mountain spring. We used native plants to ensure the pond thrived with minimal maintenance."

The examples showcase the passion and innovation that certified Aquascape contractors bring to each project, where ecological knowledge is combined with craftsmanship and artistic sensibility.

Environmental benefits

Switching from a traditional pool to a natural ecosystem pond offers many benefits:

  • Water savings: less evaporation and no need for draining for chemical balancing.
  • Lower carbon footprint: less energy use compared to electric filters and heating.
  • Support for pollinators: attracts bees, butterflies, and other beneficial insects.
  • Biodiversity: creates habitats for amphibians, birds, and aquatic species.
Pool conversion to ecological swimming pond

How does maintenance work?

Many assume that natural ponds require more maintenance, but when designed correctly, they are often easier to manage than traditional pools. Faunapoolen and other certified contractors offer seasonal maintenance plans that may include:

  • Removal of leaves and debris.
  • Pruning plants and seasonal maintenance.
  • Maintenance packages monthly, bi-monthly, or annually.
Large-scale natural pool after renovation

No more pH tests or chlorine tablets, just simple and eco-friendly maintenance.

Is a pool conversion right for you?

A conversion from pool to pond suits homeowners who want to swim without chemicals, appreciate natural aesthetics and soothing soundscapes, welcome wildlife in the garden, and value sustainability over sterile luxury. It is a clear step towards a more nature-conscious home, with rewards in the form of beauty, biodiversity, and increased well-being.

You can contact us directly at 0735406757 or via email at info@faunapoolen.se.

Ready to transform your pool?

If you are in Sweden or anywhere else in the EU, Faunapoolen can help you all the way from concrete pool to living oasis. As part of the network of certified Aquascape contractors, we combine global expertise with local care.

Book a consultation at 0735406757 or fill out the form on the contact page.

Do you dream of having your own natural pool?

Learn more about how to create a natural pool or other eco-friendly water solutions for your garden.