Water hardness in Záskalí
1.83 mmol/L very hard
Tap water in Záskalí is very hard: 1.83 mmol/L (183 mg/L · 10.7 gpg · 10.3 °dH).
Source: SčVK, Moje obec – kvalita vody (aktuální hodnoty) (2026) · data checked 2026-10-21
Range across supply zones: 49–221 mg/L.
Záskalí, in the Liberec Region, is supplied by SčVK. The median is 183 mg/L as CaCO₃, with readings from 49 to 221 mg/L. That is a wide spread, from soft to very hard, and the utility page does not explain it. Water at your tap may differ from the median, so check the local value.
Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
Water data
| Total hardness | 1.83 mmol/L |
|---|---|
| Calcium (mg/L) | 70 |
| Magnesium (mg/L) | 2.04 |
| Utility | Severočeské vodovody a kanalizace, a.s. (SčVK) |
How Záskalí compares
- Tap water in Záskalí is 53 % harder than the median of the 1516 cities we track in Czechia (1.2 mmol/L).
- By hardness it ranks 401 of 1516 in Czechia (1 = hardest); 74 % of these cities have softer water.
- In Liberecký kraj it is number 96 of 273 cities; the regional median is 1.26 mmol/L.
- Nearest city with clearly softer water: Jeřmanice, 2 km away (0.81 mmol/L).
- Nearest city with clearly harder water: Hodkovice nad Mohelkou, 2 km away (2.33 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 Záskalí
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 10 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S2 |
| 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 Záskalí water hard or soft?
It is very hard: 183 mg/L as CaCO₃ (10.7 gpg, 10.3 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Záskalí 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 Záskalí water?
10.7 gpg, equal to 10.3 °dH, 18.3 °fH or 183 mg/L calcium carbonate.
What dishwasher salt setting should I use in Záskalí?
For 183 mg/L (10.3 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Záskalí?
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