52 Culligan® High Efficiency 1.5 Twin Water Softener
52 Cat. No. 01024821
Brine Draw
Raw water is directed from the inlet through the nozzle and into the throat. A vacuum is created and concentrated brine
is educted (drawn). The raw water and concentrated brine combine, enter the mineral tank, and pass through the resin,
up the manifold and to the drain. Once all of the brine has been educted and the brine valve seats, the unit goes into slow
rinse. Hard water is allowed to service during regeneration.
P1
P2
P3
Raw
Water
Bypassed
Water
To
Drain
To
Brine
Tank
Tank
Inlet
Tank
Brine
Piston
P6
P4
P5
PR
Hard Water
Softened Water
Drain
Brine
Diluted Brine
Figure 55. Down flow regeneration—brine draw.
Brine Draw
Piston Position
P1–Inlet Closed
P2/3–Outlet Closed
P4–Backwash Closed
P5–Rinse Open
P6–Bypass Open
Brine Piston Open
PR–Refill Closed
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