A natural swimming pool is generally constituted by a swimming area and a planting area with a depth from 1.2 to 2 metres. The water filtration of the biological ponds is simultaneously assured by the lagoon area and by a biological and mechanical filtration system.
A natural biological pond is not a extensively sterilized with chlorine swimming-pool. Indeed, it’s surface is occupied by bacteria and usefull micro organisms.
A natural biological : it’s also a natural place in your garden, which offers appreciated coolness during heat wave.