Water hardness in Telfs
9 °dH hard
Tap water in Telfs is hard: 9 °dH (161 mg/L · 9.4 gpg · 16.1 °fH).
Source: GemeindeWerke Telfs GmbH - Wasserqualität und Härte (Ortsteil table) (2025) · data checked 2026-10-20
Range across supply zones: 146–229 mg/L.
12 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| Bairbach | 12.3 | 220 | very hard |
| Buchen | 12.1 | 216 | very hard |
| Dandl | 8.2 | 146 | hard |
| Dandl II | 8.2 | 146 | hard |
| Hinterberg | 8.6 | 154 | hard |
| Mösern | 10.1 | 180 | very hard |
| Rinnertal | 8.7 | 155 | hard |
| Rollmühle | 10.7 | 191 | very hard |
| Sagl | 12.8 | 229 | very hard |
| Sandbühel | 9 | 161 | hard |
| Sonnensiedlung | 9 | 161 | hard |
| St. Veit | 8.7 | 155 | hard |
The GemeindeWerke Telfs publish hardness for 12 local zones on one page. The median is 160.7 mg/L CaCO₃, with a range of 146.4 to 228.5 mg/L, so the water is hard in every zone. The page is undated, and we assign it to 2025 from the zone laboratory reports. Check your own Ortsteil in the table.
Angabe in °dH; Härtebereiche wie in Deutschland üblich.
Water data
| Total hardness | 9 °dH |
|---|---|
| Utility | GemeindeWerke Telfs (GWT) |
How Telfs compares
- Tap water in Telfs is 36 % softer than the median of the 159 cities we track in Austria (14 °dH).
- By hardness it ranks 149 of 159 in Austria (1 = hardest); 6 % of these cities have softer water.
- In Tirol it is number 4 of 7 cities; the regional median is 9 °dH.
- Nearest city with clearly softer water: Lienz, 139 km away (5.3 °dH).
- Nearest city with clearly harder water: Wörgl, 77 km away (12.2 °dH).
Ranking of the hardest and softest water in Austria →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
How much salt will you use for softening?
Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.
Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Telfs
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 9 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S1 |
| 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 Telfs water hard or soft?
It is hard: 161 mg/L as CaCO₃ (9.4 gpg, 9 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Telfs 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 Telfs water?
9.4 gpg, equal to 9 °dH, 16.1 °fH or 161 mg/L calcium carbonate.
What dishwasher salt setting should I use in Telfs?
For 161 mg/L (9 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Telfs?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: GemeindeWerke Telfs GmbH - Wasserqualität und Härte (Ortsteil table) (2025). Method: figure published by the water supplier. GemeindeWerke Telfs GmbH - Wasserqualität und Härte (Ortsteil table) · Outdated figure? Tell us