Natural swimming pools (also known as swimming ponds or bio pools) mimic nature to clean the water - no chlorine necessary.
CHOICE looks at how they work and what the costs are if you're thinking of building one or converting your existing chlorine pool. See www.choice.com.au/naturalpools
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The pools in this video are equipped with gartenART biofilter technology and built in collaboration with gartenART Australia. They were variously designed and constructed by Landforms, Simon Lloyd and Panda Pools & Spas.