Culligan Smart Controller HE DF 12 Installation, Operation, And Service Instructions With Parts Lists page 58

Backwash Flow
Raw water is directed down the center of the manifold, up through the resin, out the top of the tank to drain. The water to
drain should be hard.
Raw
Water
Culligan® High Efficiency 1.5 Water Filter
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B
A
P1
P6
P2
P3
F
E
Figure 62.
Backwash
Piston
P1–Inlet
P2/3–Outlet
P4–Backwash
P5–Rinse
P6–Bypass Piston
Brine Piston
PR–Refill Piston
Tank
Inlet
C D
P4
P5 PR
G H
Tank
Outlet
Backwash flow.
Position
Closed
Open
Open
Closed
Open
Closed
Closed
To
Drain
Brine
Piston
To
Brine
Tank
Cat. No. 01024514
54