74 Culligan® Culligan Top Mount (CTM) Water Softeners
74 Cat. No. 01029401
Backwash
Treated
Hard
Brine
Key
Waste
7
8
1
2
3
6
4
5
Table 15. Piston Cycle Positions, Backwash
Piston
Number
Piston
Position 1 Position 2 Position 3 Position 4 Position 5
Service Backwash
Brine Draw/
Slow Rinse
Fast Rinse Fill
1 Valve Inlet Up Down Down Up Up
2 Valve Outlet Up Down Down Down Up
3 Backwash Down Up Down Down Down
4 Drain - Backwash Down Up Down Down Down
5 Drain - Fast Rinse Down Down Up Up Down
6 Hard Water Bypass Down Up Up Up Down
7 Refill Down Down Up Down Up
8 Brine Draw Down Down Up Down Down
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