Water hardness in Brezno
1.6 mmol/L hard
Tap water in Brezno is hard: 1.6 mmol/L (160 mg/L · 9.4 gpg · 9 °dH).
Source: Stredoslovenská vodárenská prevádzková spoločnosť (StVPS) (2026) · data checked 2026-10-20
Range across supply zones: 50–370 mg/L.
StVPS supplies this town; its sources in central Slovakia include reservoirs such as Turček and local groundwater or springs, so the exact source for a given street can differ. The reported hardness is 160.1 mg/L CaCO₃, with measurements from 50.0 to 370.3 mg/L. Expect visible scale in kettles and showers; a scale-control device is worth considering.
Slovak suppliers report "Vápnik a horčík" in mmol/L; the recommended range is 1.1–5 mmol/L.
Water data
| Total hardness | 1.6 mmol/L |
|---|---|
| Utility | Stredoslovenská vodárenská prevádzková spoločnosť (StVPS) |
How Brezno compares
- Tap water in Brezno is 16 % softer than the median of the 1113 cities we track in Slovakia (1.9 mmol/L).
- By hardness it ranks 599 of 1113 in Slovakia (1 = hardest); 46 % of these cities have softer water.
- In Banská Bystrica Region it is number 112 of 327 cities; the regional median is 1 mmol/L.
- Nearest city with clearly softer water: Čierny Balog, 6 km away (0.34 mmol/L).
- Nearest city with clearly harder water: Valaská, 5 km away (3.65 mmol/L).
Ranking of the hardest and softest water in Slovakia →
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 Brezno
| 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 Brezno water hard or soft?
It is hard: 160 mg/L as CaCO₃ (9.4 gpg, 9 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Brezno safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Slovak suppliers report "Vápnik a horčík" in mmol/L; the recommended range is 1.1–5 mmol/L.
How many grains per gallon is Brezno water?
9.4 gpg, equal to 9 °dH, 16 °fH or 160 mg/L calcium carbonate.
What dishwasher salt setting should I use in Brezno?
For 160 mg/L (9 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Brezno?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Stredoslovenská vodárenská prevádzková spoločnosť (StVPS) (2026). Method: figure published by the water supplier. Stredoslovenská vodárenská prevádzková spoločnosť (StVPS) · Outdated figure? Tell us