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ENGLISH
A quantity of chlorine that is added to the water (in excess of that needed to
destroy bacteria and oxidize organic material) remains free to combat new
bacteria introduced by bathers or atmospheric agents.
This chlorine remaining in the water is known as free residual chlorine.
FILTRATION
It is essential that the filtration is accompanied by chemical treatment of the
pool water.
The two processes are complimentary to each other.
WORKING PRINCIPLES
(6) return suction inlets (2) skimmer
(5) filter
multiport valve
(4) pump
(3) valves
Suction is taken from the main drains (1) on the bottom of the pool and the
skimmers (2) at the pool surface and fed via separate pipe work with their
corresponding valves (3), through the pump (4) to the sand filter (5).
After filtration, the water is returned to the pool via return inlets (6), which are
installed on the opposite side of the pool to the skimmers and main drains.
(1) drain
