Filter
Top Products
DISC SELECTION
DISC SELECTION WS-40/80
The amount of hardness removed (in compensated gpg) will be based on the amount of brine and the meter disc
selected.
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.
3. Determine the salt setting. The salt setting is determined by taking the compensated hardness (calculated in
step 1 above) and using the specification table for model WS-40 or WS-80.
4. Verify the float cup setting. Use specifications for the WS-40 or WS-80 to determine the correct setting the
float cup height.
Specifications WS-40 WS-80
Salt usage / generation 1.0 lbs. 1.4 lbs.
Capacity 2,527 grains 4,818 grains
Efficiency 2,527 gr./lb. 3,442 gr./lb.
Dosing 5.5 lbs./cu. ft. 3.5 lbs./cu. ft.
Float cup setting 6.25" 6.5"
WS-40 Disc Selection *
Disc Number 1 2 3 4 5 6 7 8
Compensated Hardness * 4 8 11 15 19 23 27 30
Gallons Between
Regeneration
9.1 9.1 9.1 9.1 8.4 6.6 5.4 4.4
Rregeneration Gallons
(min.) @ 15 psig
583 282 194 146 117 97 83 73
* Compensated hardness in gpg = Hardness + (3 x Fe in mg/l)
WS-80 Disc Selection *
Disc Number 1 2 3 4 5 6 7 8
Compensated Hardness * 5 11 17 22 27 32 35 40
Gallons Between
Regeneration
10.2 10.2 10.2 10.2 10.2 8.3 6.7 5.5
Rregeneration Gallons
(min.) @ 15 psig
732 366 244 183 146 122 105 92
* Compensated hardness in gpg = Hardness + (3 x Fe in mg/l)
WS-40/80 Hobart Compact Water Softener Installation Instructions - DISC SELECTION
F25404 Rev. A (0413) Page 10 of 10