64 Culligan® Culligan Top Mount (CTM) Water Softeners
64 Cat. No. 01029401
Troubleshooting
Drain Line Flow Control—Service
Located on the drain connection of the valve, the purpose of the drain line flow controller is to regulate the up flow back-
wash required to expand and agitate the resin in the softener. The softener will allow maximum expansion of the resin,
while preventing any loss to the drain.
The flow control principle is simple and trouble free. The specified rate of flow will be constant regardless of inlet pressure
variations.
Occasionally, the Drain Line Flow Controller may become plugged with scale, rust, or other foreign material. If this occurs,
cleaning is required. This can be done while the softener is in SERVICE and under pressure.
Brine System Analysis
If the brine system is functioning properly, there will be water in the brine tank, but the level should be below the safety
valve float and the fiberglass rod should travel freely. If these conditions do not exist, one of the following conditions will
indicate the nature of the problem:
1. NO WATER IN BRINE TANK—ROD TRAVELS FREELY. The flow control is plugged. Remove refill flow control.
Clean or replace.
2. NO WATER IN BRINE TANK—ROD IS RIGID. Air or water slammed the safety valve closed before water could
enter the tank. Clean parts at the base of the brine safety valve and also make sure that the seat of the check
valve in the brine line is clean. Check for possible air leaks in the brining system.
3. WATER IN BRINE TANK UP TO SAFETY VALVE FLOAT—ROD IS RIGID. There are possible causes:
a. Brine piston is not in service position when control is in service or brine piston seals are defective.
Remove brine line while in service. There should be no flow to brine tank.
b. Refill flow rate is too high or refill time length is too long. Check refill flow rate and compare to specifi-
cation in “Performance Specifications” on page 3.
c. Brine tank is smaller than the recommended size. Refer to Table 7 on page 44.
CTM Complete Brine Draw/Slow Rinse Times
Table 10. CTM Brine Times
lbs/ft³ 4 5 6 7 8 9 10 11 12 13 14 15
Model min min min min min min min min min min min min
60K 21 23 25 26 28 30 31 33 34 36 38 39
90K 36 39 41 43 46 48 51 53 56 58 60 63
120K 25 27 28 30 31 33 35 36 38 39 41 42
150K 34 36 38 40 42 44 46 48 50 52 54 56
210K 28 29 31 33 35 37 39 40 42 44 46 48
300K 42 45 48 50 53 55 58 61 63 66 68 71
450K 36 39 42 45 48 51 55 58 61 64 67 70
600K 50 55 59 63 67 71 75 80 84 88 92 96
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