Water hardness in Chvalín
4.61 mmol/L very hard
Tap water in Chvalín is very hard: 4.61 mmol/L (461 mg/L · 27 gpg · 25.8 °dH).
Source: SčVK, Moje obec – kvalita vody (aktuální hodnoty) (2026) · data checked 2026-10-21
SčVK reports 461.4 mg/L hardness as CaCO₃ for Chvalín in the Litoměřice area, the highest value in this batch. The utility page does not name the source, so we leave the cause open, and we suggest checking the current figure on the SčVK page. At this level scale forms quickly, so a softener is worth a serious look.
Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
Water data
| Total hardness | 4.61 mmol/L |
|---|---|
| Calcium (mg/L) | 154 |
| Magnesium (mg/L) | 18.6 |
| Utility | Severočeské vodovody a kanalizace, a.s. (SčVK) |
How Chvalín compares
- Tap water in Chvalín is 284 % harder than the median of the 1516 cities we track in Czechia (1.2 mmol/L).
- By hardness it ranks 73 of 1516 in Czechia (1 = hardest); 95 % of these cities have softer water.
- In Ústecký kraj it is number 73 of 631 cities; the regional median is 1.31 mmol/L.
- Nearest city with clearly softer water: Brzánky, 8 km away (3.46 mmol/L).
- Nearest city with clearly harder water: Chotěšov, 8 km away (5.9 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 Chvalín
| Brand | Setting for this water |
|---|---|
| Bosch | H06 |
| Miele | 26 °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 Chvalín water hard or soft?
It is very hard: 461 mg/L as CaCO₃ (27 gpg, 25.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Chvalín 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 Chvalín water?
27 gpg, equal to 25.8 °dH, 46.1 °fH or 461 mg/L calcium carbonate.
What dishwasher salt setting should I use in Chvalín?
For 461 mg/L (25.8 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Chvalín?
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