Water hardness in Rimavská Sobota
0.98 mmol/L moderately hard
Tap water in Rimavská Sobota is moderately hard: 0.98 mmol/L (98 mg/L · 5.7 gpg · 5.5 °dH).
Source: Stredoslovenská vodárenská prevádzková spoločnosť (StVPS) (2026) · data checked 2026-10-20
Range across supply zones: 88–102 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 98.1 mg/L CaCO₃, with measurements from 88.1 to 102.1 mg/L. Limescale appears gradually on taps and heating elements; occasional descaling keeps it in check.
Slovak suppliers report "Vápnik a horčík" in mmol/L; the recommended range is 1.1–5 mmol/L.
Water data
| Total hardness | 0.98 mmol/L |
|---|---|
| Utility | Stredoslovenská vodárenská prevádzková spoločnosť (StVPS) |
How Rimavská Sobota compares
- Tap water in Rimavská Sobota is 48 % softer than the median of the 1113 cities we track in Slovakia (1.9 mmol/L).
- By hardness it ranks 857 of 1113 in Slovakia (1 = hardest); 22 % of these cities have softer water.
- In Banská Bystrica Region it is number 167 of 327 cities; the regional median is 1 mmol/L.
- Nearest city with clearly softer water: Ožďany, 10 km away (0.6 mmol/L).
- Nearest city with clearly harder water: Dražice, 7 km away (1.36 mmol/L).
Ranking of the hardest and softest water in Slovakia →
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 Rimavská Sobota
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 5 °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 Rimavská Sobota water hard or soft?
It is moderately hard: 98 mg/L as CaCO₃ (5.7 gpg, 5.5 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Rimavská Sobota 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 Rimavská Sobota water?
5.7 gpg, equal to 5.5 °dH, 9.8 °fH or 98 mg/L calcium carbonate.
What dishwasher salt setting should I use in Rimavská Sobota?
For 98 mg/L (5.5 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Rimavská Sobota?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: Stredoslovenská vodárenská prevádzková spoločnosť (StVPS) (2026). Method: figure published by the water supplier. Stredoslovenská vodárenská prevádzková spoločnosť (StVPS) · Outdated figure? Tell us