Water hardness in Střevelná
1.03 mmol/L moderately hard
Tap water in Střevelná is moderately hard: 1.03 mmol/L (103 mg/L · 6 gpg · 5.8 °dH).
Source: SčVK, Moje obec – kvalita vody (aktuální hodnoty) (2026) · data checked 2026-10-21
SčVK reports 103.1 mg/L for Střevelná in the Liberec Region, which is moderate and close to the hard threshold. Only one figure is published, with no range. Expect some scale on kettles and taps, and little on appliances that are descaled now and then.
Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
Water data
| Total hardness | 1.03 mmol/L |
|---|---|
| Calcium (mg/L) | 38 |
| Magnesium (mg/L) | 2 |
| Utility | Severočeské vodovody a kanalizace, a.s. (SčVK) |
How Střevelná compares
- Tap water in Střevelná is 14 % softer than the median of the 1516 cities we track in Czechia (1.2 mmol/L).
- By hardness it ranks 857 of 1516 in Czechia (1 = hardest); 43 % of these cities have softer water.
- In Liberecký kraj it is number 161 of 273 cities; the regional median is 1.26 mmol/L.
- Nearest city with clearly softer water: Horská Kamenice, 2 km away (0.8 mmol/L).
- Nearest city with clearly harder water: Bozkov, 4 km away (1.37 mmol/L).
Ranking of the hardest and softest water in Czechia →
What it means at home
- Visible kettle scale every few weeks; vinegar or citric acid is enough.
- Water heater and washing machine: some long-term scale; a scale inhibitor slows it.
- Dishwasher: medium salt setting.
- Softener optional; pays off mainly with a gas boiler or tankless heater.
How much salt will you use for softening?
Optional. A scale inhibitor or a small softener protects the heater; soap savings are modest.
Descale a coffee machine or kettle about every 3 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Střevelná
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 6 °dH |
| AEG / Electrolux | 2 |
| Beko | 2nd |
| Hoover | S1 |
| LG | H1 |
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 Střevelná water hard or soft?
It is moderately hard: 103 mg/L as CaCO₃ (6 gpg, 5.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Střevelná 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 Střevelná water?
6 gpg, equal to 5.8 °dH, 10.3 °fH or 103 mg/L calcium carbonate.
What dishwasher salt setting should I use in Střevelná?
For 103 mg/L (5.8 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Střevelná?
Not essential; a scale inhibitor protects the heater cheaply.
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