Gardening

Natural pools: the biological balance


How to dive in clean and healthy water without resorting to chemical treatments like chlorine?

Natural swimming pools offer an ecological answer to the pleasure of swimming.

Explanations.

Natural swimming pool: operation

Enjoying a swimming pool in your garden without harmful effects on the environment is now possible thanks to natural pools who do not use no chemicals for the treatment of bathing water. Their operation is based on maintaining the biological balance through the circulation of water and its purification by aquatic plants.

The swimming pool does not consist of a single pool but of several spaces communicating with each other.

Primordial for avoid stagnation, the water is stirred by a pump system or simply by creating a connection between the basins, such as a small waterfall for example.

Regeneration is ensured by a zone of oxygenating vegetation including in particular water lilies. Their leaves growing in water allow the formation of zooplankton and the life of small animals such as newts, shrimps or frogs which play a role in this biological balance.

A lagoon is also reconstituted to filter water thanks to purifying plants fixing nitrates and phosphates. They are planted on a neutral and inert support. This is usually a layer of pozzolana or gravel.

Little maintenance for the natural pool

On the aesthetic level, the natural pools are integrated into the landscape using materials such as wood for a beach terrace or pebbles for an overflow zone offering a mirror effect and restoring the heat of the sun.

Claimant very little maintenance, they are filled with drinking water that should not be changed because the biological balance improves over time. Avoid introducing fish whose droppings increase the nitrate level and therefore the risk of algae formation.

For a creation, the price ranges from € 2,000 for self-construction to € 40,000 for 40 m2 by a specialist. It is also possible to transform a traditional basin into a natural swimming pool.

Fabienne Lisse

Swimming lane, masonry pool Aquatiss
Woodéo basin immersed in larch Aquatiss
Autoclave pine basin Aquatiss

Video: How to build an Natural:Organic Pool in France (October 2020).