Water Softener
Weichwassermeister
®
GSX 5, GSX 10, GSX 10-I
Order no.-Nr. 075 187 970-inter Edited by: KONS-nkes-mrie G:\BA-187970-INTER_GSX 5-10.DOC
10
The total hardness of the water is the sum of the concentrations of cal-
cium ions and magnesium ions.
Note:
In nature, calcium and magnesium ions exist side by side, e. g. in
the mineral dolomite.
Hardness ranges according to German Detergent and Cleaning Agents
Act (WMRG):
Hardness
range
°dH
°f
mmol/l =
mol/m
3
1 (soft)
0 – 8.4
< 15,0
0 – 1.5
2 (medium)
8.4 – 14
15,0 - 25,0
1.5 – 2.5
3
(hard)
>14
> 25,0
>2.5
Starting from hardness range “hard”, it is advisable to soften the water
for usage. Additional measures may be necessary depending on the
original quality of the water and its intended use.
* CO
2
from the air dissolves in water, causing a low concentration of carbon dioxide.
