Natural swimming pool. Uses a natural water filtration system instead of chlorine. Love the ambience it gives-- useful for the gorgeous look even when the weather is too cold for swimming.

Natural Pools Are Making a Ripple, But Are They For You?

Natural Swimming Pool/Ponds (NSP's) are a chemical-free, low-maintenance alternative to traditional chlorine pools. The water is clean, crystal-clear, and filtered naturally using a built-in biological filter.

Natural Swimming Pool/Ponds (NSP's) are a chemical-free, low-maintenance alternative to traditional chlorine pools. The water is clean, crystal-clear, and filtered naturally using a built-in biological filter. by kathrine

natural swimming pool. No chemicals, no salt.  The water is filtered by plants and pumped back to the swimming area.

Natural Swimming Ponds Ditch the Chemicals

30 Breathtaking Natural Swimming Pools by Biotop | http://www.designrulz.com/outdoor-design/garden/2013/04/breathtaking-natural-swimming-pools-by-biotop/

30 Breathtaking Natural Swimming Pools by Biotop

23 Beautiful and Sustainable Natural Swimming Pools    Hot Post From One Year Ago #pools  #pooltime #openthepool

23 Beautiful and Sustainable Natural Swimming Pools — Hot Post From One Year Ago

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