Water hardness in Cholunná
0.99 mmol/L moderately hard
Tap water in Cholunná is moderately hard: 0.99 mmol/L (99 mg/L · 5.8 gpg · 5.6 °dH).
Source: ČEVAK a.s. (Veolia), Moje obec – kvalita pitné vody (2026) · data checked 2026-10-21
Cholunná in Kraj Vysočina is supplied by ČEVAK a.s., which reports a hardness of 99.1 mg/L as CaCO₃ for the municipality. This is a moderate value. The source page gives the figure but not the origin of the water, so we do not describe the geology. Scale forms slowly, and most households need no treatment.
Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
Water data
| Total hardness | 0.99 mmol/L |
|---|---|
| Calcium (mg/L) | 20 |
| Magnesium (mg/L) | 12 |
| Utility | ČEVAK a.s. |
How Cholunná compares
- Tap water in Cholunná is 17 % softer than the median of the 1516 cities we track in Czechia (1.2 mmol/L).
- By hardness it ranks 868 of 1516 in Czechia (1 = hardest); 43 % of these cities have softer water.
- In Kraj Vysočina it is number 2 of 6 cities; the regional median is 0.99 mmol/L.
- Nearest city with clearly softer water: Mutyněves, 13 km away (0.68 mmol/L).
- Nearest city with clearly harder water: Zdešov, 7 km away (2 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 Cholunná
| 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 Cholunná water hard or soft?
It is moderately hard: 99 mg/L as CaCO₃ (5.8 gpg, 5.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Cholunná 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 Cholunná water?
5.8 gpg, equal to 5.6 °dH, 9.9 °fH or 99 mg/L calcium carbonate.
What dishwasher salt setting should I use in Cholunná?
For 99 mg/L (5.6 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Cholunná?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: ČEVAK a.s. (Veolia), Moje obec – kvalita pitné vody (2026). Method: figure published by the water supplier. ČEVAK a.s. (Veolia), Moje obec – kvalita pitné vody · Outdated figure? Tell us