Water hardness in Leonding
14.7 °dH very hard
Tap water in Leonding is very hard: 14.7 °dH (262 mg/L · 15.3 gpg · 26.2 °fH).
Source: Stadtgemeinde Leonding - Güteinformation gemäß Trinkwasserverordnung für Leonding 2025 (2025) · data checked 2026-10-21
Range across supply zones: 236–289 mg/L.
The town's 2025 water quality information prints two hardness values, which convert to 235.6 and 289.2 mg/L CaCO₃. The columns are not labelled by well or zone, so we show them as a range around 262.4 mg/L, not as separate areas. No sampling date is printed. Expect hard water and plan for descaling.
Angabe in °dH; Härtebereiche wie in Deutschland üblich.
Water data
| Total hardness | 14.7 °dH |
|---|---|
| Utility | Stadtgemeinde Leonding - Trinkwasserversorgung |
How Leonding compares
- Tap water in Leonding is 5 % harder than the median of the 159 cities we track in Austria (14 °dH).
- By hardness it ranks 48 of 159 in Austria (1 = hardest); 70 % of these cities have softer water.
- In Oberösterreich it is number 4 of 10 cities; the regional median is 14.5 °dH.
- Nearest city with clearly softer water: Freistadt, 32 km away (4.1 °dH).
- Nearest city with clearly harder water: Sankt Valentin, 23 km away (21.3 °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 Leonding
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 15 °dH |
| AEG / Electrolux | 3 |
| 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 Leonding water hard or soft?
It is very hard: 262 mg/L as CaCO₃ (15.3 gpg, 14.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Leonding 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 Leonding water?
15.3 gpg, equal to 14.7 °dH, 26.2 °fH or 262 mg/L calcium carbonate.
What dishwasher salt setting should I use in Leonding?
For 262 mg/L (14.7 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Leonding?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Stadtgemeinde Leonding - Güteinformation gemäß Trinkwasserverordnung für Leonding 2025 (2025). Method: computed from supplier's calcium and magnesium. Stadtgemeinde Leonding - Güteinformation gemäß Trinkwasserverordnung für Leonding 2025 · Outdated figure? Tell us