DISC SELECTION
The amount of hardness removed (in compensated gpg) will be based on the amount of brine and the meter disc
selected.
NOTE:
Determining the correct brine valve setting for a particular application is a three step process:
1.
Determine the compensated hardness. This requires a hardness test and an iron test on raw water at the
application site. Compensated hardness is calculated by multiplying the ferrous iron (in ppm) by 3 and adding
it to the grains of hardness.
2.
To test the water supply, use the water analysis test kit available through Pro Products Inc. The
recommended kit is #2401 Field Analysis Kit. To order the test kit contact Pro Products at 800-285-9176 or
visit www.ProProducts.com.
WS-55
Disc Selection
(Compensated Hardness*)
Setting
Capacity
Efficiency
Dosing
Meter Disc
1
2
3
4
5
6
7
8
1.4 lbs.
4,818 grains
3,442 gr./lb.
3.5 lbs./ft
3
6
13
25
27
30
35
37
40
Gallons/Regeneration:
591 296 166 148 118 99
84
74
Flow during regeneration (@ 15 psig):
5
5
5
5
5
5
5
5
*Compensated hardness in gpg = Ha (3 x Fe in mg/l)
F25407 (February 2011)
Page 9 of 16
