Water hardness in Sauerlach
18.3 °dH very hard
Tap water in Sauerlach is very hard: 18.3 °dH (327 mg/L · 19.1 gpg · 32.7 °fH).
Source: Gemeinde Sauerlach, Trinkwasseruntersuchung Brunnen Sauerlach (AGROLAB Prüfbericht 2162065, Rohwasser) (2026-08) · data checked 2026-11-06
The figure of 326.7 mg/L (18.3 °dH) comes from a raw-water analysis (report dated August 2026) for the Sauerlach well. It is a single sample from one well; the Arget well and the Eichenhausen districts, supplied through the Zweckverband Endlhauser Gruppe, are not covered. Raw water is not the same as water at the tap, so treat the number as a guide. It sits in the "hard" band (above 14 °dH).
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 18.3 °dH |
|---|---|
| Utility | Gemeinde Sauerlach (Brunnen Sauerlach and Arget; Zweckverband Endlhauser Gruppe for Eichenhausen districts) |
How Sauerlach compares
- Tap water in Sauerlach is 59 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 135 of 809 in Germany (1 = hardest); 83 % of these cities have softer water.
- In Bayern it is number 44 of 137 cities; the regional median is 15.8 °dH.
- Nearest city with clearly softer water: Karlsfeld, 31 km away (2.6 °dH).
- Nearest city with clearly harder water: Tuntenhausen, 32 km away (23.9 °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 Sauerlach
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 18 °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 Sauerlach water hard or soft?
It is very hard: 327 mg/L as CaCO₃ (19.1 gpg, 18.3 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Sauerlach 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 Sauerlach water?
19.1 gpg, equal to 18.3 °dH, 32.7 °fH or 327 mg/L calcium carbonate.
What dishwasher salt setting should I use in Sauerlach?
For 327 mg/L (18.3 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Sauerlach?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Gemeinde Sauerlach, Trinkwasseruntersuchung Brunnen Sauerlach (AGROLAB Prüfbericht 2162065, Rohwasser) (2026-08). Method: figure published by the water supplier. Gemeinde Sauerlach, Trinkwasseruntersuchung Brunnen Sauerlach (AGROLAB Prüfbericht 2162065, Rohwasser) · Outdated figure? Tell us