70 Culligan® High Efficiency 1.5 Water Softener
70 Cat. No. 01023552
Up Flow Regeneration—Refill
To make the brine, water flows into the salt storage area during the fill stage to make brine for the next regeneration se-
quence. Use soft water for refill. Fill cycle length depends on the salt dosage. There is an approximately two-hour pause
while the unit is making brine. The unit will continue to be in the service position and will continue to soften water.
.
P1
P6 P4
P2
P3
P5
PR
Raw
Water
Conditioned
Water
To
Drain
To
Brine
Tank
Tank
Inlet
Tank
Outlet
Brine
Piston
Hard Water
Softened Water
Drain
Brine
Diluted Brine
Figure 78. Up flow regeneration—refill.
Refill
Piston Position
P1–Inlet Open
P2/3–Outlet Open
P4–Backwash Closed
P5–Rinse Closed
P6–Bypass Piston Closed
Brine Piston Closed
PR–Refill Piston Open
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