Hmm, strange I posted this reply yesterday, but it never appeared on the
list - I am not so confident using gmail.
Yes, it sort of works like a big fish aquarium. though fish are not allowed
It was started in Austria I believe, you can read more here, if it comes
up with the german page you can switch to English, although if you can
read german there is more information on the german pages
http://www.biotop-natural-pool.com/
IanW
Chuck Norcutt wrote:
> Very interesting. What keeps the water clean in a closed system without
> chlorine as would be used in a conventional swimming pool? The plants?
>
> Chuck Norcutt
>
>
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