Water hardness in Ploužnice
1.9 mmol/L very hard
Tap water in Ploužnice is very hard: 1.9 mmol/L (190 mg/L · 11.1 gpg · 10.7 °dH).
Source: SčVK, Moje obec – kvalita vody (aktuální hodnoty) (2026) · data checked 2026-10-21
Ploužnice is served by Severočeské vodovody a kanalizace (SčVK) in the Liberec Region, which reports 190.2 mg/L, in the very hard band. The utility page lists current values but does not say which source feeds this village, so the cause is not stated here. Expect limescale on kettles and heaters, and consider descaling the boiler regularly.
Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
Water data
| Total hardness | 1.9 mmol/L |
|---|---|
| Calcium (mg/L) | 72 |
| Magnesium (mg/L) | 2 |
| Utility | Severočeské vodovody a kanalizace, a.s. (SčVK) |
How Ploužnice compares
- Tap water in Ploužnice is 58 % harder than the median of the 1516 cities we track in Czechia (1.2 mmol/L).
- By hardness it ranks 386 of 1516 in Czechia (1 = hardest); 75 % of these cities have softer water.
- In Liberecký kraj it is number 89 of 273 cities; the regional median is 1.26 mmol/L.
- Nearest city with clearly softer water: Vranov, 3 km away (1.01 mmol/L).
- Nearest city with clearly harder water: Vápno, 11 km away (2.48 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 Ploužnice
| Brand | Setting for this water |
|---|---|
| Bosch | H03 |
| Miele | 11 °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 Ploužnice water hard or soft?
It is very hard: 190 mg/L as CaCO₃ (11.1 gpg, 10.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Ploužnice 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 Ploužnice water?
11.1 gpg, equal to 10.7 °dH, 19 °fH or 190 mg/L calcium carbonate.
What dishwasher salt setting should I use in Ploužnice?
For 190 mg/L (10.7 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Ploužnice?
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