Water hardness in Prien am Chiemsee
17.2 °dH very hard
Tap water in Prien am Chiemsee is very hard: 17.2 °dH (307 mg/L · 17.9 gpg · 30.7 °fH).
Source: Markt Prien am Chiemsee, Trinkwasseruntersuchung (AGROLAB, Prüfbericht 27.03.2025) (2025-03) · data checked 2026-11-03
Markt Prien published a laboratory report dated 27 March 2025 that gives 17.2 °dH (3.08 mmol/l), classed as hard. It is based on one reservoir tap sample from the Markt Prien network, taken on 21 March 2025. One sample cannot show seasonal variation, so treat the figure as a single reading.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 17.2 °dH |
|---|---|
| Utility | Marktgemeinde Prien am Chiemsee (Wasserwerk) |
How Prien am Chiemsee compares
- Tap water in Prien am Chiemsee is 50 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 180 of 809 in Germany (1 = hardest); 78 % of these cities have softer water.
- In Bayern it is number 57 of 137 cities; the regional median is 15.8 °dH.
- Nearest city with clearly softer water: Bad Reichenhall, 42 km away (12.2 °dH).
- Nearest city with clearly harder water: Bernau am Chiemsee, 9 km away (21.5 °dH).
Ranking of the hardest and softest water in Germany →
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 Prien am Chiemsee
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 17 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| Hoover | S3 |
| 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 Prien am Chiemsee water hard or soft?
It is very hard: 307 mg/L as CaCO₃ (17.9 gpg, 17.2 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Prien am Chiemsee 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 Prien am Chiemsee water?
17.9 gpg, equal to 17.2 °dH, 30.7 °fH or 307 mg/L calcium carbonate.
What dishwasher salt setting should I use in Prien am Chiemsee?
For 307 mg/L (17.2 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Prien am Chiemsee?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Markt Prien am Chiemsee, Trinkwasseruntersuchung (AGROLAB, Prüfbericht 27.03.2025) (2025-03). Method: figure published by the water supplier. Markt Prien am Chiemsee, Trinkwasseruntersuchung (AGROLAB, Prüfbericht 27.03.2025) · Outdated figure? Tell us