Water hardness in Brunn am Gebirge
15.2 °dH very hard
Tap water in Brunn am Gebirge is very hard: 15.2 °dH (271 mg/L · 15.8 gpg · 27.1 °fH).
Source: Eurofins Umweltanalytik Österreich, Inspektionsbericht E2604590/04I_KORR for Marktgemeinde Brunn am Gebirge (Probe E2604590/003) (2026-06) · data checked 2026-10-20
Brunn am Gebirge is supplied mainly by two sources: about 80 % from the Wasserleitungsverband Triestingtal- und Südbahngemeinden and about 17 % from EVN Wasser. A Eurofins inspection report from June 2026 gives 271.3 mg/L CaCO₃, which is very hard. It is a single sample, and the mix of the two suppliers may shift over time. Expect limescale on kettles and taps.
Angabe in °dH; Härtebereiche wie in Deutschland üblich.
Water data
| Total hardness | 15.2 °dH |
|---|---|
| Utility | Marktgemeinde Brunn am Gebirge, Wasserversorgungsanlage (WLV Triestingtal- und Südbahngemeinden ca. 80 %, EVN Wasser ca. 17 %) |
How Brunn am Gebirge compares
- Tap water in Brunn am Gebirge is 9 % harder than the median of the 159 cities we track in Austria (14 °dH).
- By hardness it ranks 46 of 159 in Austria (1 = hardest); 72 % of these cities have softer water.
- In Niederösterreich it is number 33 of 46 cities; the regional median is 15.5 °dH.
- Nearest city with clearly softer water: Vienna, 13 km away (9 °dH).
- Nearest city with clearly harder water: Mödling, 2 km away (19.1 °dH).
Ranking of the hardest and softest water in Austria →
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 Brunn am Gebirge
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 15 °dH |
| AEG / Electrolux | 4 |
| Beko | 4th |
| Hoover | S2 |
| LG | H3 |
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 Brunn am Gebirge water hard or soft?
It is very hard: 271 mg/L as CaCO₃ (15.8 gpg, 15.2 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Brunn am Gebirge safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Angabe in °dH; Härtebereiche wie in Deutschland üblich.
How many grains per gallon is Brunn am Gebirge water?
15.8 gpg, equal to 15.2 °dH, 27.1 °fH or 271 mg/L calcium carbonate.
What dishwasher salt setting should I use in Brunn am Gebirge?
For 271 mg/L (15.2 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Brunn am Gebirge?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Eurofins Umweltanalytik Österreich, Inspektionsbericht E2604590/04I_KORR for Marktgemeinde Brunn am Gebirge (Probe E2604590/003) (2026-06). Method: own measurement. Eurofins Umweltanalytik Österreich, Inspektionsbericht E2604590/04I_KORR for Marktgemeinde Brunn am Gebirge (Probe E2604590/003) · Outdated figure? Tell us