Classical
swimming pond plus pool technic ...
... are similar constructed like the more classical type but with a more strict
partition between purifying / planted zone and swimming zone and with a aditional
circulation only for the needs of the swimming zone. It is driven by a aditional
pool-pump combined with a typical pool-sand-filter.
The hydraulic flow to this pond would be more intensive. Although the tecnical
costs would be higher, the animal life would be reduced to almost nil in the
swimming pond.
