Tap water hardness in OW
We have published hardness data for 4 cities in OW. The median is 19.6 °fH; the hardest water is in Lungern (22.7 °fH), the softest in Engelberg (14.4 °fH).
100 % of these cities have hard or very hard water (over 120 mg/L).
Cities in OW, hardest first
| °fH | mg/L | ||
|---|---|---|---|
| Lungern | 22.7 | 227 | very hard |
| Giswil | 22 | 220 | very hard |
| Sachseln | 17.3 | 173 | hard |
| Engelberg | 14.4 | 144 | hard |