Water hardness in Staré Splavy
1.17 mmol/L moderately hard
Tap water in Staré Splavy is moderately hard: 1.17 mmol/L (117 mg/L · 6.8 gpg · 6.6 °dH).
Source: SčVK, Moje obec – kvalita vody (aktuální hodnoty) (2026) · data checked 2026-10-21
SčVK reports 117.1 mg/L CaCO₃ for Staré Splavy in the Liberec Region, which is moderate and close to the hard band. The village lies by Lake Mácha, but the utility does not say whether the lake or another source feeds the supply. Some limescale on kettles is likely.
Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
Water data
| Total hardness | 1.17 mmol/L |
|---|---|
| Calcium (mg/L) | 43 |
| Magnesium (mg/L) | 2.31 |
| Utility | Severočeské vodovody a kanalizace, a.s. (SčVK) |
How Staré Splavy compares
- Tap water in Staré Splavy is close to the median of the 1516 cities we track in Czechia (1.2 mmol/L).
- By hardness it ranks 808 of 1516 in Czechia (1 = hardest); 47 % of these cities have softer water.
- In Liberecký kraj it is number 151 of 273 cities; the regional median is 1.26 mmol/L.
- Nearest city with clearly softer water: Lasvice, 13 km away (0.8 mmol/L).
- Nearest city with clearly harder water: Doksy, 3 km away (1.55 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 Staré Splavy
| Brand | Setting for this water |
|---|---|
| Bosch | H01 |
| Miele | 7 °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 Staré Splavy water hard or soft?
It is moderately hard: 117 mg/L as CaCO₃ (6.8 gpg, 6.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Staré Splavy 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 Staré Splavy water?
6.8 gpg, equal to 6.6 °dH, 11.7 °fH or 117 mg/L calcium carbonate.
What dishwasher salt setting should I use in Staré Splavy?
For 117 mg/L (6.6 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Staré Splavy?
Not essential; a scale inhibitor protects the heater cheaply.
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