Water hardness in Stroupeč
2.97 mmol/L very hard
Tap water in Stroupeč is very hard: 2.97 mmol/L (297 mg/L · 17.4 gpg · 16.7 °dH).
Source: SčVK, Moje obec – kvalita vody (aktuální hodnoty) (2026) · data checked 2026-10-21
SčVK reports 297.3 mg/L as CaCO₃ for Stroupeč in Ústecký kraj (2026), which is very hard. The source water is not named on the utility page. Expect heavy scale in kettles, washing machines and on heating elements, so a softener or regular descaling is practical.
Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
Water data
| Total hardness | 2.97 mmol/L |
|---|---|
| Calcium (mg/L) | 79 |
| Magnesium (mg/L) | 24.2 |
| Utility | Severočeské vodovody a kanalizace, a.s. (SčVK) |
How Stroupeč compares
- Tap water in Stroupeč is 148 % harder than the median of the 1516 cities we track in Czechia (1.2 mmol/L).
- By hardness it ranks 235 of 1516 in Czechia (1 = hardest); 84 % of these cities have softer water.
- In Ústecký kraj it is number 198 of 631 cities; the regional median is 1.31 mmol/L.
- Nearest city with clearly softer water: Nové Sedlo, 2 km away (0.81 mmol/L).
- Nearest city with clearly harder water: Libočany, 3 km away (4.1 mmol/L).
Ranking of the hardest and softest water in Czechia →
What it means at home
- Severe scale: heater elements and washing-machine heaters fail early.
- Detergent use is very high; taps and screens coat within days.
- Dishwasher at maximum salt setting.
- An ion-exchange softener is practically essential; RO for drinking water.
How much salt will you use for softening?
Yes. At this hardness a softener pays for itself through appliance life and detergent.
Descale a coffee machine or kettle about every 1 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Stroupeč
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 17 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| Hoover | S2 |
| LG | H3 |
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 Stroupeč water hard or soft?
It is very hard: 297 mg/L as CaCO₃ (17.4 gpg, 16.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Stroupeč 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 Stroupeč water?
17.4 gpg, equal to 16.7 °dH, 29.7 °fH or 297 mg/L calcium carbonate.
What dishwasher salt setting should I use in Stroupeč?
For 297 mg/L (16.7 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Stroupeč?
Yes, unless you are only passing through: scale damages appliances within a few years.
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