F. Scale Flushing Procedure (Continued):
8.
Turn Function Switch to "FLUSH". This will allow fresh water to flush out the residual Hypochlorite and will act as
a buffer between the acid and chlorine. Circulate the water until all the chlorine has been purged from the cells and heat
exchanger (5 min.) and turn Function Switch "OFF." 9. Open V-5 to drain, V-8 to vent and V-9 to drain to allow system to
drain.
10.
Close V-5 to OFF, V-8 and V-9 to OFF.
11.
Open V-3 and V-5 to acid.
12.
Open acid tank valve.
13.
Function Switch to "FLUSH" position. Circulate acid until all visible signs of the scale is removed from cell
electrodes.
14.
Function Switch "OFF." 15. Close acid tank valve.
16.
Open V-3 to water and V-5 to drain.
17.
Turn Function Switch to "FLUSH" approximately 5 minutes, until all traces of acid are removed.
18.
Turn Function Switch "OFF."
19.
Close V-3 and V-5 to "OFF."
20.
Open V-2, V-4, and V-6, replace fuse in brine pump or turn on Brine Pump Switch. Turn "Function Switch" to
AUTOMATIC and reset flowmeters as previously set.
The system is now ready for normal operation.
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