All about natural pools

All about natural pools

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It's decided, you want to invest in a swimming pool. But which one to choose? Inground pool, above ground pool or natural pool? To help you make the right choice, today we invite you to discover the natural swimming pool.

The principle

A natural swimming pool is a biological and therefore ecological swimming pool. Thanks to its composition and design, it goes perfectly with the ambiance of the garden. The natural pool is an inground pool. It is built using concrete just like a classic inground pool. The natural swimming pool differs in terms of its functioning. No chemicals are used, the filtration system is entirely biological. It consists of plants or natural materials. The natural swimming pool has several spaces: a swimming space, a plant space and a filtration space.

Photo credits: Jacques Brens / Wilcox

How does a natural pool work?

Natural pools use the power of nature. The sun heats the water and destroys part of the bacteria. Plants replace chemical agents, they have the capacity to clean water, purify it and oxygenate it. A good choice of plants keeps water clean and reduces the risk of being invaded by algae. Animals can also play a role in the balance of a natural swimming pool. They have the capacity to ingest certain wastes and to brew water. Pool users will also play a role in natural maintenance. They brew water and ensure a form of balance with the bacteria they bring.

Natural swimming pool: our advice

Do you choose a natural swimming pool? Choose the location of the pool carefully. The bathing area should be as sunny as possible so that the water is both heated and purified. However, the plant area and the filtration area must be in the shade to limit the proliferation of algae.

Photo credit: Waterworld

The interview

The maintenance of a natural swimming pool is particularly simple. If the pool has been properly designed, then you do not have to do anything specific. You must maintain it in the same way as your garden by removing the dead leaves and pruning the plants. Depending on the region you live in and the quality of the water used, you may need to clean the bottom of the pool. To minimize the accumulation of sediment in the bottom of the basin, it is recommended to place a layer of volcanic rock, naturally filtering. For better water mixing, the solution is the installation of a fountain. In addition to being aesthetic, the fountain ensures the balance of the ecosystem of your natural basin.


The natural swimming pool is not subject to any safety regulations. However, if you have children, you must make sure that the facilities are not dangerous for them. To start the construction of your natural swimming pool, you do not need a building permit provided that the surface of the swimming pool is less than 100m² and its depth less than 2m. It is still recommended to make a request for work to the town hall of your municipality.

Photo credit: Jacques Brens