Tap water hardness in Královéhradecký kraj
We have published hardness data for 3 cities in Královéhradecký kraj. The median is 0.41 mmol/L; the hardest water is in Hradec Králové (2.9 mmol/L), the softest in Špindlerův Mlýn (0.31 mmol/L).
33 % of these cities have hard or very hard water (over 120 mg/L).
Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
Cities in Královéhradecký kraj, hardest first
| mmol/L | mg/L | ||
|---|---|---|---|
| Hradec Králové | 2.9 | 290 | very hard |
| Bedřichov | 0.41 | 41 | soft |
| Špindlerův Mlýn | 0.31 | 31 | soft |