The Château de Germigney’s pool offers its guests a rare experience: the opportunity to swim in crystal-clear, entirely natural water, free of all chemical treatment. To achieve this, it has installed an entirely new water filtration system and swimming pool using a groundbreaking ecological method.
Water to supply the pool is drawn from an on-site borehole, avoiding the need to use chemically treated tap water. It then passes to a specially constructed basin that contains 40 varieties of oxygenating plants. The natural action of their root systems, as well as progressive grades of sand and gravel result in complete filtration. The plants also attract an ecosystem of micro-organisms which aid purification. The water undergoes final mechanical filtration stages, and a heat pump ensures it is kept at a uniform 24°C before being transferred to the pool. It then flows back to the filtration basin, creating a constant circuit of fresh water for swimmers.