Water hardness in Mödling
19.1 °dH very hard
Tap water in Mödling is very hard: 19.1 °dH (341 mg/L · 19.9 gpg · 34.1 °fH).
Source: Stadtgemeinde Mödling - Trinkwasserdaten März 2026 (AGES Befund) (2026-03) · data checked 2026-10-20
Mödling reports 340.9 mg/L CaCO₃ in the March 2026 drinking-water data, based on an AGES test report. The page gives one value and no zone breakdown, so we cannot say it covers every street. At this level, limescale on kettles and taps is a realistic expectation.
Angabe in °dH; Härtebereiche wie in Deutschland üblich.
Water data
| Total hardness | 19.1 °dH |
|---|---|
| Utility | Stadtgemeinde Mödling Wasserwerk |
How Mödling compares
- Tap water in Mödling is 36 % harder than the median of the 159 cities we track in Austria (14 °dH).
- By hardness it ranks 8 of 159 in Austria (1 = hardest); 96 % of these cities have softer water.
- In Niederösterreich it is number 6 of 46 cities; the regional median is 15.5 °dH.
- Nearest city with clearly softer water: Brunn am Gebirge, 2 km away (15.2 °dH).
- Nearest city with clearly harder water: Perchtoldsdorf, 4 km away (25.9 °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 Mödling
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 19 °dH |
| AEG / Electrolux | 5 |
| Beko | 5th |
| Hoover | S3 |
| 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 Mödling water hard or soft?
It is very hard: 341 mg/L as CaCO₃ (19.9 gpg, 19.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Mödling 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 Mödling water?
19.9 gpg, equal to 19.1 °dH, 34.1 °fH or 341 mg/L calcium carbonate.
What dishwasher salt setting should I use in Mödling?
For 341 mg/L (19.1 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Mödling?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Stadtgemeinde Mödling - Trinkwasserdaten März 2026 (AGES Befund) (2026-03). Method: figure published by the water supplier. Stadtgemeinde Mödling - Trinkwasserdaten März 2026 (AGES Befund) · Outdated figure? Tell us