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4.3 Use of optional chlorine cell
Periodical chlorination of the raw water feed to a softener device
is meaningful in order to fight microbiological contamination in
the exchangers and pipes by chemical means. For this purpose,
a chlorine cell may be inserted in the brine tube by use of a t-
piece connector that produces active chlorine. Any excessive
chlorin is washed out with the regeneration waste water. How to
use the chlorine cell is described in a chapter of its own.
4.4 Operating cycles
Normal operation mode of the WaterLine softener devices is
„softening“ . Alternating to this (in case of single systems) or in
parallel (with double systems), then in the currently not active
exchanger, „regenerating“ is carried out. The following operating
cycles can be distinguished in detail:
Normal operation
•
Softening
Regeneration
•
Backwash
•
Brine and Slow wash
•
Rinse
•
Fill (brine tank)
4.4.1 Softening
This is the normal operation mode of the WaterLine softener
device. The control valve guides raw water into the pressure
tank filled with exchanger resin. Raw water flows top down
through the resin while the resin absorbes magnesium and cal-
cium ions, exchanging them with sodium ions. By this mecha-
nism, softened water is generated. The product water enters the
rise pipe in the pressure tank through the bottom nozzle and is
subsequently propagated to the control valve and, finally, to the
consumer through the product water pipe.
4.4.2 Regenerate
Since the exchange capacity of the resin is exhausted after a
certain volume of soft water produced, regeneration is required
on a regular time frame. For this purpose, NaCl brine is used
that is produced by dissolving salt tablets in the brine tank.
Regeneration point of time is determined by the control valve. To
enable this, „soft water capacity“ with respect to the Waterline
device capacity and local raw water hardness must be pro-
grammed into the the control valve logic. On reaching the
threshold set, automatic regeneration will result. The number of
regeneration occurences is only restricted by resin life time.
Softening
Soft water
Raw water
resin
Exchanger
Summary of Contents for WaterLine Double
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