Water hardness in Germering
19.8 °dH very hard
Tap water in Germering is very hard: 19.8 °dH (353 mg/L · 20.6 gpg · 35.3 °fH).
Source: Stadtwerke Germering - Agrolab Prüfbericht 2113832 (2026-05) · data checked 2026-10-23
Stadtwerke Germering's laboratory report of May 2026 gives 353.4 mg/L CaCO₃ (19.8 °dH, 3.54 mmol/L), and the utility's own web page agrees at about 20 °dH. The town sits west of Munich in the Alpine foreland, where lime-rich gravel is typical; the report does not describe the aquifer. Descaling a kettle or coffee machine regularly is a realistic need.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 19.8 °dH |
|---|---|
| Utility | Stadtwerke Germering (Wasserwerk) |
How Germering compares
- Tap water in Germering is 72 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 76 of 809 in Germany (1 = hardest); 91 % of these cities have softer water.
- In Bayern it is number 22 of 137 cities; the regional median is 15.8 °dH.
- Nearest city with clearly softer water: Gröbenzell, 7 km away (12.4 °dH).
- Nearest city with clearly harder water: Ampfing, 79 km away (26 °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 Germering
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 20 °dH |
| AEG / Electrolux | 5 |
| Beko | 6th |
| 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 Germering water hard or soft?
It is very hard: 353 mg/L as CaCO₃ (20.6 gpg, 19.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Germering 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 Germering water?
20.6 gpg, equal to 19.8 °dH, 35.3 °fH or 353 mg/L calcium carbonate.
What dishwasher salt setting should I use in Germering?
For 353 mg/L (19.8 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Germering?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Stadtwerke Germering - Agrolab Prüfbericht 2113832 (2026-05). Method: figure published by the water supplier. Stadtwerke Germering - Agrolab Prüfbericht 2113832 · Outdated figure? Tell us