Ing. János BARTAL
Biological and barhing pools (5)
Biological public pools(Summary)
The two main elements of the
man-made biological and environmental
friendly natural public
pools are the swimming zone and
the planted up regeneration zone.
These pools can be a beneficial
and more economical substitute
of traditional, chemically managed
pools for pensions, hotels
and holiday resorts. 
The low maintenance
costs make it possible
for local governments to transfer
their old style, chemical pools,
which are not conform to hygiene
standards, into modern, biological
public pools hence cutting down
the costs of construction. Water
cleansing is very simple in the
biological pool; the water of the
swimming zone is channelled into
a network of pipes leading into
the pump. This pump circulates
the water through a series of biological
filters where the water is
cleansed by aerobic bacteria. The
clean water afterwards is pumped
back into the swimming zone. | 
