AEG L 61470 FL User Manual page 20

20
Water hardness table
Level
1
2
3
4
Type
°dH
soft 0-7
medium 8-14
hard 15-21
very hard > 21
Water hardness
°T.H. mmol/l
0-15 0-1.5
16-25 1.6-2.5
26-37 2.6-3.7
> 37 >3.7
Clarke
0-9
10-16
17-25
>25