Water hardness in Wals-Siezenheim
12 °dH very hard
Tap water in Wals-Siezenheim is very hard: 12 °dH (214 mg/L · 12.5 gpg · 21.4 °fH).
Source: Salzburg AG Wasserlabor, Inspektionsbericht 39151-001-004 for Gemeinde Wals-Siezenheim (2026-05) · data checked 2026-10-20
Wals-Siezenheim has an inspection report from the Salzburg AG water laboratory dated May 2026, showing 214.2 mg/L CaCO₃. That is in the very hard category. It is one measurement of the municipal supply, with no zone breakdown or seasonal data, so treat it as a guide rather than a fixed value.
Angabe in °dH; Härtebereiche wie in Deutschland üblich.
Water data
| Total hardness | 12 °dH |
|---|---|
| Utility | Gemeinde Wals-Siezenheim (Wasserversorgung) |
How Wals-Siezenheim compares
- Tap water in Wals-Siezenheim is 14 % softer than the median of the 159 cities we track in Austria (14 °dH).
- By hardness it ranks 101 of 159 in Austria (1 = hardest); 37 % of these cities have softer water.
- In Salzburg it is number 2 of 4 cities; the regional median is 10.8 °dH.
- Nearest city with clearly softer water: Saalfelden am Steinernen Meer, 41 km away (9.6 °dH).
- Nearest city with clearly harder water: Bad Ischl, 49 km away (15 °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 Wals-Siezenheim
| Brand | Setting for this water |
|---|---|
| Bosch | H03 |
| Miele | 12 °dH |
| AEG / Electrolux | 3 |
| Beko | 3rd |
| Hoover | S2 |
| 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 Wals-Siezenheim water hard or soft?
It is very hard: 214 mg/L as CaCO₃ (12.5 gpg, 12 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Wals-Siezenheim 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 Wals-Siezenheim water?
12.5 gpg, equal to 12 °dH, 21.4 °fH or 214 mg/L calcium carbonate.
What dishwasher salt setting should I use in Wals-Siezenheim?
For 214 mg/L (12 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Wals-Siezenheim?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Salzburg AG Wasserlabor, Inspektionsbericht 39151-001-004 for Gemeinde Wals-Siezenheim (2026-05). Method: own measurement. Salzburg AG Wasserlabor, Inspektionsbericht 39151-001-004 for Gemeinde Wals-Siezenheim · Outdated figure? Tell us