Here at Woodhouse we have been building natural swimming pools for over 10 years, during this time we have used the Biotop system http://www.biotop-natural-pool.com, Biotop have been building natural pools in Austria and Germany for over 20 years, since partnering with Biotop we have been working to continually innovate and improve the system to ensure we can offer our customers the best possible natural swimming experience in the comfort of their own gardens.
The filtration technology of Biotop natural swimming pools uses two separate water circulation systems for optimum water quality and clarity. The primary system uses a low energy submersed pump that runs 24 hours a day all year round and draws water down through fine grade chemically inert filter grit and a carefully selected mix of plant species, to trap sediment, breakdown organic materials and remove nutrients from the water. This water is then filtered through a specially developed phosphate binding media and returned to the pool.
The second filtration system runs during the day and is connected to a biotop patented, self cleaning, self adjusting skimmer that takes all the surface water over a 8 hour period and clears any surface debris such as leaves to reduce the amount of wind blown debris reaching the pool, and cutting down on cleaning.
These two systems working together provide some of the most reliable and efficient filtration available for natural swimming pools.