Water hardness in Heřmanice
1.26 mmol/L hard
Tap water in Heřmanice is hard: 1.26 mmol/L (126 mg/L · 7.4 gpg · 7.1 °dH).
Source: SčVK, Moje obec – kvalita vody (aktuální hodnoty) (2026) · data checked 2026-10-21
SčVK reports 126.1 mg/L CaCO₃ for Heřmanice in the Česká Lípa district of Liberec region, in the hard category. We have not verified the source for this village. Limescale appears gradually on kettles and glass, and descaling a few times a year is typical.
Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
Water data
| Total hardness | 1.26 mmol/L |
|---|---|
| Calcium (mg/L) | 42 |
| Magnesium (mg/L) | 5 |
| Utility | Severočeské vodovody a kanalizace, a.s. (SčVK) |
How Heřmanice compares
- Tap water in Heřmanice is 5 % harder than the median of the 1516 cities we track in Czechia (1.2 mmol/L).
- By hardness it ranks 576 of 1516 in Czechia (1 = hardest); 62 % of these cities have softer water.
- In Liberecký kraj it is number 136 of 273 cities; the regional median is 1.26 mmol/L.
- Nearest city with clearly softer water: Slunečná, 10 km away (0.89 mmol/L).
- Nearest city with clearly harder water: Rané, 2 km away (2.39 mmol/L).
Ranking of the hardest and softest water in Czechia →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
How much salt will you use for softening?
Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.
Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Heřmanice
| Brand | Setting for this water |
|---|---|
| Bosch | H01 |
| Miele | 7 °dH |
| AEG / Electrolux | 2 |
| Beko | 2nd |
| Hoover | S1 |
| LG | H2 |
From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →
FAQ
Is Heřmanice water hard or soft?
It is hard: 126 mg/L as CaCO₃ (7.4 gpg, 7.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Heřmanice safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
How many grains per gallon is Heřmanice water?
7.4 gpg, equal to 7.1 °dH, 12.6 °fH or 126 mg/L calcium carbonate.
What dishwasher salt setting should I use in Heřmanice?
For 126 mg/L (7.1 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Heřmanice?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: SčVK, Moje obec – kvalita vody (aktuální hodnoty) (2026). Method: figure published by the water supplier. SčVK, Moje obec – kvalita vody (aktuální hodnoty) · Outdated figure? Tell us