Water hardness in Chlumánky
1.64 mmol/L hard
Tap water in Chlumánky is hard: 1.64 mmol/L (164 mg/L · 9.6 gpg · 9.2 °dH).
Source: ČEVAK a.s. (Veolia), Moje obec – kvalita pitné vody (2026) · data checked 2026-10-21
ČEVAK, the regional operator, reports 164.1 mg/L CaCO₃ for Chlumánky in Plzeň Region, which falls in the hard band. The published page gives one value and does not name the water source for this village, so we do not state one. At this level, expect limescale on kettles, shower heads and heating elements.
Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
Water data
| Total hardness | 1.64 mmol/L |
|---|---|
| Calcium (mg/L) | 54.5 |
| Magnesium (mg/L) | 6.9 |
| Utility | ČEVAK a.s. |
How Chlumánky compares
- Tap water in Chlumánky is 37 % harder than the median of the 1516 cities we track in Czechia (1.2 mmol/L).
- By hardness it ranks 433 of 1516 in Czechia (1 = hardest); 71 % of these cities have softer water.
- In Plzeňský kraj it is number 26 of 75 cities; the regional median is 1.64 mmol/L.
- Nearest city with clearly softer water: Mítov, 12 km away (1.26 mmol/L).
- Nearest city with clearly harder water: Dolní Lukavice, 11 km away (2.62 mmol/L).
Ranking of the hardest and softest water in Czechia →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
How much salt will you use for softening?
Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.
Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Chlumánky
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 9 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S1 |
| 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 Chlumánky water hard or soft?
It is hard: 164 mg/L as CaCO₃ (9.6 gpg, 9.2 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Chlumánky 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 Chlumánky water?
9.6 gpg, equal to 9.2 °dH, 16.4 °fH or 164 mg/L calcium carbonate.
What dishwasher salt setting should I use in Chlumánky?
For 164 mg/L (9.2 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Chlumánky?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
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