![background image](http://html1.mh-extra.com/html/bartscher/weh1350/weh1350_manual_4064826008.webp)
- 32 -
5.2 Structure of the water softening system
The system was designed for 0.7kg of the brine per regeneration.
The amount of softened water between regenerations is calculated according to the
following formula.
Z = 1350x10 / Y
Where
Z
– amount of softened water between the regenerations
Y
– measured hardness of water according to dH (German degree).
Example of calculation of the amount of softened water between regeneration
processes:
Measured water hardness is 15° dH.
Amount of Z water softened between the regeneration processes is calculated
in the following way: Z = 1350 x 10/15 = 900 litres.
With the water hardness of 15° dH, 900 litres of softened water are produced.
Volume table
Water hardness (°)
English
degrees
French
degrees
PPM
German
degrees
Softened
water (l)
12,5
18,0
178,6
10
1350
13,8
19,8
196,5
11
1227
15,0
21,6
214,3
12
1125
16,3
23,4
232,2
13
1038
17,5
25,2
250,0
14
964
18,8
27,0
267,9
15
900
20,0
28,8
285,8
16
844
21,3
30,6
303,6
17
794
22,5
32,4
321,5
18
750
23,8
34,2
339,3
19
711
25,0
36,0
357,2
20
675
26,3
37,8
375,1
21
643
27,5
39,6
392,9
22
614
28,8
41,4
410,8
23
587
30,0
43,2
428,6
24
563