Filter
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TIMER"POWER-OUTAGE MEMORY"
If e_ectrical power to the timer goes off, the "memory"
buitt into timer circuitry keeps all settings for 6 hours
(minimum) or more. The display is blank and the'filter
will not recharge. When electrical power comes on, 1
of 2 things will happen.
1. The present time of day will show, mean-
. ing the timer memory has kept all settings.
NOTE: tf the filter was in a recharge when power
was lost, it will now finish the cycle.
2. The display will show a time, but it will be
flashing. The timer memory did not keep the
time settings and they must be reset (page 15),
The flashing display is to remind you to reset
the timer.
NOTES:
When power comes on, the flashing display re-
turns to a time of 12:00 AM Sunday, then begins to
keep time again, if you do not reset all time set-
tings, the filter will recharge 3 days each week.
However, recharges will most likely be on the
wrong days and at the wrong time.
If the filter was in a recharge when power went off,
the valve will return to service position without
finishing the recharge cycle.
HOW YOUR CLARIFYING FILTER WORKS
The clarifying filter is filled with a mineral called "filter
aggregate." This mineral looks something like coame
sand. During service (FIG. 16) water goes intothe filter
and DOWN through the bed of mineral. The mineral
takes the dirt, sand, silt, clay and other sediments out
of the water and holds itin the bed. Clear, clean water
goes out of the filter arid into the house pipes.
BYPASS
WATER OUT WATER
rN
FILTERED
WATER OUT
SERVICE
WATER
IN
Mir_rar
Bed
RECHARGE
BACk'3NASH - After a time, the mineral needs clean-
ing to flush out all the sediments held by the mineral.
This cleaning is called backwash. In backwash, water
flows UP through the mineral. The dirt and other
sediments flush out ofthe mineral, out the top of the
filter, and to the drain. Backwash is about 25 minutes
long.
BACKWASH
"_25minutes)
Mineral
Bed
FILTERED
WATER OUT WATER
IN
. C;ain
FAST RINSE -After backwash, the water flow changes
direction and goes downward through the filter at a
fast rate. Dirt and other sediments, left at the bottom
of the mineral bed, are flushed to the drain. The fast
rinse is about 5 minutes tong. Then, the filter returns
to service.
FAST RINSE
(5 minutes)
17.