Water hardness in Vilshofen an der Donau
10.1 °dH hard
Tap water in Vilshofen an der Donau is hard: 10.1 °dH (179 mg/L · 10.5 gpg · 17.9 °fH).
Source: Stadtwerke Vilshofen GmbH - Wasserhärte (date not specified) · data checked 2026-11-12
Range across supply zones: 80–230 mg/L.
4 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| Albersdorf | 4.5 | 80 | moderately hard |
| Alkofen | 12.9 | 230 | very hard |
| Pleinting / Aunkirchen | 8.4 | 150 | hard |
| Stadt / Sandbach / Zeitlarn | 11.7 | 209 | very hard |
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 10.1 °dH |
|---|---|
| Utility | Stadtwerke Vilshofen GmbH |
How Vilshofen an der Donau compares
- Tap water in Vilshofen an der Donau is 13 % softer than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 481 of 809 in Germany (1 = hardest); 41 % of these cities have softer water.
- Nearest city with clearly softer water: Deggendorf, 28 km away (3.7 °dH).
- Nearest city with clearly harder water: Ruhstorf an der Rott, 31 km away (17.5 °dH).
Ranking of the hardest and softest water in Germany →
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 Vilshofen an der Donau
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 10 °dH |
| AEG / Electrolux | 2 |
| 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 Vilshofen an der Donau water hard or soft?
It is hard: 179 mg/L as CaCO₃ (10.5 gpg, 10.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Vilshofen an der Donau safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
How many grains per gallon is Vilshofen an der Donau water?
10.5 gpg, equal to 10.1 °dH, 17.9 °fH or 179 mg/L calcium carbonate.
What dishwasher salt setting should I use in Vilshofen an der Donau?
For 179 mg/L (10.1 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Vilshofen an der Donau?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Stadtwerke Vilshofen GmbH - Wasserhärte (date not specified). Method: figure published by the water supplier. Stadtwerke Vilshofen GmbH - Wasserhärte · Outdated figure? Tell us