How do you calculate the total surface area of a Bioteich® natural swimming pool? A Bioteich ® natural swimming pool comprises 2 or 3 zones: 1 – Swimming area 2 – Filtration zone 3 – Regeneration zone (as an option). The total surface area represents at least one and a half times the size of the swimming area.

Do you need a big garden to build a Bioteich® natural swimming pool? No. The Bioteich® process can adapt to all garden sizes, in town or in the country; natural swimming pools have even been built in gardens smaller than 100 m², occupying the entire surface of the garden, to the immense satisfaction of the owners!

Are there standard models of ® Bioteich® natural swimming pools? No, because each pool is unique (contemporary, freestyle, natural). Each firm can offer you a customised design adapted to your wishes and your land.

How much does a® Bioteich® natural swimming pool cost? Like traditional swimming pools, the cost depends on the size, the depth, access to the site, the architecture... The larger the total surface area, the lower the cost per m². Please consult your nearest approved partner and ask for a quote for your personal project.

What are the running costs of a Bioteich® natural swimming pool? A Bioteich® natural swimming pool of around 100 m² of water (30 m² to 65 m² swimming area) consumes electricity for the pumps (0.50 kW/H) and water to compensate for evaporation (1 to 2 cm/day in summer). The average consumption costs for a pool of this size are therefore 500 to 900 € /year in electricity -/+ 100 to 150 € /year in water.

Can a Bioteich® natural swimming pool be heated? Yes, but don’t forget that a Bioteich® natural swimming pool is already heated naturally by the sun (therefore free of charge). The water heats up quickly thanks to the regeneration pool which is shallow (0 to 0.60 m) and whose heat is permanently restored by the pebbles laid on the banks. Further heating is possible using a heat pump or solar sensors in order to gain an extra 5 to 6°C.

Is use of a Bioteich® natural swimming pool limited to the summer season? A Bioteich® natural swimming pool remains aesthetically attractive all year round. In the warm season you can enjoy swimming in it and in winter it becomes a decorative feature (although the braver among you may be tempted by a swim after a sauna!)

Does a Bioteich® natural swimming pool pose a health risk? No, quite the opposite! Swimming in clear, natural water without chemicals or UV products is highly beneficial to the health: no more red eyes, mycoses, allergies or burnt skin. The way the aquatic fauna and flora grows so harmoniously is living proof that this ecosystem is good for you!

Are there mosquitoes in a® Bioteich® natural swimming pool? First, since the water is permanently circulating it never stagnates and so does not encourage the presence of mosquito eggs. Second, since a natural swimming pool is a natural biotope, aquatic predators (frogs, dragonfly larvae, etc...) will remove any mosquito eggs.

Are frogs and fish indispensable to the balance of a Bioteich® natural swimming pool? Frogs are often found around natural swimming pools in the countryside or suburbs. Their croaking adds to the charm of the biotope between April and June. Fish are not at all advisable! They generate excrement which disturbs the biological balance of the water and its transparency. Some fish also destroy the aquatic plants (carp in particular). A few small white fish are OK to keep and will enhance the life of the pool (moderlieschen, stickleback, minnow, bleak, roach, etc).

Can a Bioteich® natural swimming pool be built indoors? It would be difficult, because the process is totally ecological and relies on the natural growth of the flora and fauna, which is unfortunately not possible indoors (unless you leave the windows open!).

Is a watertight membrane indispensable? Yes, because the Bioteich® natural swimming pool needs to stay totally watertight in order to economise water as much as possible. This is why Bioteich uses a SIKA® membrane which offers every guarantee of quality and durability (reinforced fibreglass membrane, no plasticizing agent, UV resistant, ecologically recyclable, chemically neutral, etc). Several different colours are possible.

Do the safety standards governing swimming pools apply to Bioteich® natural swimming pools? Yes, Bioteich® strongly recommends complying with the safety standards relating to swimming pool safety. You cannot take the slightest risk with the safety of children! This is why each Bioteich® approved firm will systematically propose a choice of alarms or fences complying with the standards.

What is the legislation in force for the installation of a Bioteich® natural swimming pool? For any natural swimming pool project, Bioteich® advises you to go through the planning formalities with the help of the approved company. A Bioteich® natural swimming pool can be built on virtually any type of land, even farmland and non-residential land.

Is a ® Bioteich® natural swimming pool maintenance-free? No, like with any equipment, minimum maintenance is necessary and is simply a matter of using the pool cleaner (weekly in summer, monthly in winter) and maintaining the aquatic plants in the biotope (pruning once a year and occasional clipping in the summer season). You should also clean the skimmers and the pump filter. Lastly, the decanter should be emptied every three to five years. Maintaining a Bioteich® natural swimming pool is mainly a matter of aquatic gardening.

Does the water in a ® Bioteich® natural swimming pool need to be changed each year? No, anything but! The Bioteich® patented system is an economical and ecological process. The water “gets better” with time. To preserve the biological balance of the natural biotope, the water should never be changed.

Can you swim as soon as the pool has been filled with water? Yes, because the pool is filled with drinking water. However, experience has proved that perfect biological balance is only achieved 2 to 3 years after the pool has been filled.

Can Bioteich® natural swimming pools be built anywhere? Yes. For example in France, many such pools exist at all altitudes and latitudes. There is the public natural pool in Combloux (Haute Savoie), which at 1,000 m is the highest, built in 2000. The southernmost natural pool is private, in Roquebrune sur Argens (Var), built in 1993.

Is the use of UV filters required to ensure the balance of a Bioteich® natural swimming pool? No, it is absolutely not necessary to use UV filters, quite the opposite! The UV rays diffused naturally by the sun eliminate the pathogenic germs in Bioteich® natural swimming pools. The large surface and the clarity of the water enable optimum diffusion of ultraviolet rays.

Are regular water analyses necessary for a Bioteich ® natural swimming pool? No, because the Bioteich® process does not require any dosage of chemicals to assure the balance of the biotope. So a bacteriological water analysis is mainly required when the pool is filled and then once each season (only if there is a problem).

What are the aquatic plants used in a Bioteich ® natural swimming pool? The aquatic plants used are all rustic indigenous species. The biotope plantation is essentially made up of purifying plants (rushes, reeds, irises ...) but also decorative plants (papyrus, water lilies, mints, lotuses...). A Bioteich® natural swimming pool is also a water garden that you will appreciate all year long.

Can a traditional pool be converted into a Bioteich® natural swimming pool? Yes – and this is actually an excellent solution for disused or aging pools, which then take on a new lease of life and become an attractive feature all year round!