Water hardness in Stradov
1.01 mmol/L moderately hard
Tap water in Stradov is moderately hard: 1.01 mmol/L (101 mg/L · 5.9 gpg · 5.7 °dH).
Source: SčVK, Moje obec – kvalita vody (aktuální hodnoty) (2026) · data checked 2026-10-21
Stradov in the Ústí nad Labem district is supplied by SčVK, which reports 101.1 mg/L for 2026. That is moderate hardness. The published page does not name the source for this village, so the cause is not stated. Some limescale on kettles is likely, but not heavy.
Czech suppliers report "Vápník a hořčík" in mmol/L; the recommended range is 2–3.5 mmol/L.
Water data
| Total hardness | 1.01 mmol/L |
|---|---|
| Calcium (mg/L) | 28 |
| Magnesium (mg/L) | 7.18 |
| Utility | Severočeské vodovody a kanalizace, a.s. (SčVK) |
How Stradov compares
- Tap water in Stradov is 16 % softer than the median of the 1516 cities we track in Czechia (1.2 mmol/L).
- By hardness it ranks 862 of 1516 in Czechia (1 = hardest); 43 % of these cities have softer water.
- In Ústecký kraj it is number 326 of 631 cities; the regional median is 1.31 mmol/L.
- Nearest city with clearly softer water: Přestanov, 1 km away (0.74 mmol/L).
- Nearest city with clearly harder water: Koštov, 8 km away (3.12 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 Stradov
| 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 Stradov water hard or soft?
It is moderately hard: 101 mg/L as CaCO₃ (5.9 gpg, 5.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Stradov 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 Stradov water?
5.9 gpg, equal to 5.7 °dH, 10.1 °fH or 101 mg/L calcium carbonate.
What dishwasher salt setting should I use in Stradov?
For 101 mg/L (5.7 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Stradov?
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