Water hardness in Dubany
4.95 mmol/L very hard
Tap water in Dubany is very hard: 4.95 mmol/L (495 mg/L · 28.9 gpg · 27.8 °dH).
Source: SčVK, Moje obec – kvalita vody (aktuální hodnoty) (2026) · data checked 2026-10-21
Dubany in the Litoměřice district (Ústí Region) is supplied by SčVK, which reports 495.4 mg/L CaCO₃. That is very hard, among the highest values we publish. Expect heavy scale in boilers, kettles and washing machines. Because the value is near our outlier threshold, check the utility's page for the latest result before buying a softener.
Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
Water data
| Total hardness | 4.95 mmol/L |
|---|---|
| Calcium (mg/L) | 157 |
| Magnesium (mg/L) | 25.2 |
| Utility | Severočeské vodovody a kanalizace, a.s. (SčVK) |
How Dubany compares
- Tap water in Dubany is 312 % harder than the median of the 1516 cities we track in Czechia (1.2 mmol/L).
- By hardness it ranks 31 of 1516 in Czechia (1 = hardest); 98 % of these cities have softer water.
- In Ústecký kraj it is number 31 of 631 cities; the regional median is 1.31 mmol/L.
- Nearest city with clearly softer water: Libochovice, 2 km away (2.45 mmol/L).
- Nearest city with clearly harder water: Vrbičany, 9 km away (6.21 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 Dubany
| Brand | Setting for this water |
|---|---|
| Bosch | H06 |
| Miele | 28 °dH |
| AEG / Electrolux | 6 |
| Beko | 6th |
| Hoover | S4 |
| LG | H4 |
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 Dubany water hard or soft?
It is very hard: 495 mg/L as CaCO₃ (28.9 gpg, 27.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Dubany 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 Dubany water?
28.9 gpg, equal to 27.8 °dH, 49.5 °fH or 495 mg/L calcium carbonate.
What dishwasher salt setting should I use in Dubany?
For 495 mg/L (27.8 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Dubany?
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