La Sultana Oualidia is proud to be 100% sustainable in its use of water.
A technical infrastructure runs below ground consisting of miles of pipework.
Grey water (shower and kitchen) is degreased, oxygenated, homogenized, UV sterilized and filtered. This provides 40 cubic meters of water a day to irrigate the garden.
Sewage water is recycled along underground conduits which use vegetation to break down bacteria. This age-old system, updated for modern needs, gives the garden nutrients to help it to flourish. The final part of the recycling process is evaporation, which takes place through the leaves of the plants.
200 liters of water per day can be evaporated by a single mature eucalyptus tree.
It is thanks to this technical infrastructure that guests can enjoy five-star comfort with minimum strain on resources.