Water hardness in Borlänge
7.7 °dH hard
Tap water in Borlänge is hard: 7.7 °dH (138 mg/L · 8.1 gpg · 13.8 °fH).
Source: Borlänge Energi AB, Dricksvattenanalyser (2025) · data checked 2026-10-20
Range across supply zones: 136–141 mg/L.
2 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| Frostbrunnsdalen | 7.9 | 141 | hard |
| Tjärna | 7.6 | 136 | hard |
Borlänge Energi lists two distribution areas, Tjärna and Frostbrunnsdalen. They run from 135.7 to 141.0 mg/L CaCO₃, so the difference is small, and the city figure is 138.3 mg/L. Values are 2025 averages from user-tap samples. Falun is supplied from the same Lennheden/Tjärna plant according to its utility, though the two figures come from different sampling. At this level you will see limescale on kettles and glass, and a descaler is worth considering.
Swedish municipalities report °dH; most surface-water supplies are soft.
Water data
| Total hardness | 7.7 °dH |
|---|---|
| Utility | Borlänge Energi AB |
How Borlänge compares
- Tap water in Borlänge is 65 % harder than the median of the 33 cities we track in Sweden (4.7 °dH).
- By hardness it ranks 2 of 33 in Sweden (1 = hardest); 97 % of these cities have softer water.
- Nearest city with clearly softer water: Köping, 112 km away (2 °dH).
Ranking of the hardest and softest water in Sweden →
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 Borlänge
| Brand | Setting for this water |
|---|---|
| Bosch | H01 |
| Miele | 8 °dH |
| AEG / Electrolux | 2 |
| Beko | 2nd |
| 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 Borlänge water hard or soft?
It is hard: 138 mg/L as CaCO₃ (8.1 gpg, 7.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Borlänge safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Swedish municipalities report °dH; most surface-water supplies are soft.
How many grains per gallon is Borlänge water?
8.1 gpg, equal to 7.7 °dH, 13.8 °fH or 138 mg/L calcium carbonate.
What dishwasher salt setting should I use in Borlänge?
For 138 mg/L (7.7 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Borlänge?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Borlänge Energi AB, Dricksvattenanalyser (2025). Method: own measurement. Borlänge Energi AB, Dricksvattenanalyser · Outdated figure? Tell us