26
5.2.4 Salt Use Table
Notes:
1. Flow rates for refill controls are based on 60 psig (414 kPa) inlet pressure.
2. Take into account the type of brine system used when determining the actual amount of salt delivered during
regeneration. (i.e. dry salt/grid plate or wet salt)
3. Salt Use Table reflects minimum salting of 6 lbs./cu.ft. (96.11 kg/m
3
) through maximum salting of 15 lbs./cu.ft.
(240.27 kg/m
3
).
4. To use potassium chloride (KCl) increase salt dosage by approximately 25%.
5. Chloride/Anion dealkalizers regenerate with 5 lbs./cu.ft. (80.09 kg/m
3
) salt (NaCl) which yields approx. 7500 gr/
cu. ft. Injecting sodium hydroxide (NaOH) i.e. caustic soda, at a rate of 1/10 that of the salt dosage, during the
brine draw cycle, increases capacity to approx. 10000 gr./cu. ft. Exact capacity, based on tank size, must be
calculated using water analysis and resin manufacturer’s capacity curves.
Table 5.8 Model 942, 952, 952QC - Salt Used per Regeneration
Tank Size/Dia.
inches (cm)
14 (35.5) 16 (40.6) 18 (45.7) 21 (53.3) 24 ( 60.9) 30 (76.2) 36 (91.4)
Resin Volume
cu. ft. (cu. m.)
3 (0.85) 4 (0.113) 5 (0.142) 7 (0.200)
10
(0.283)
15
(0.425)
20
(0.566)
Refill Flow
Rate
GPM (LPM)
0.7 (2.65) 0.8 (3.03) 1.0 (3.78) 1.4 (5.30) 2.0 (7.57)
3.0
(11.36)
5.0
(18.93)
Salt Dial
Setting
(Minutes)
Approximate Pounds of Salt per Regeneration
8 18----------120
10 21 24 30 42 60 90 150
12 25 29 36 50 72 108 180
14 29 34 42 59 84 126 210
16 34 38 48 67 96 144 240
18 38 43 54 76 108 162 270
20 42 48 60 84 120 180 300
22 45 53 66 92 132 198 --
24 -- 60 75 105 150 225 --
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