Water hardness in Metzingen
12 °dH very hard
Tap water in Metzingen is very hard: 12 °dH (214 mg/L · 12.5 gpg · 21.4 °fH).
Source: Stadtwerke Metzingen – Metzinger Trinkwasser: Wasserherkunft und Härtebereiche je Straße (2026) · data checked 2026-11-02
Range across supply zones: 160–267 mg/L.
3 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| Bodenseewasser (Neuhausen, Hartsiedlung) | 9 | 160 | hard |
| Eigenwasser (Kernstadt, Glems) | 15 | 267 | very hard |
| Mischwasser (Hochzone, Weinbergfuß, Neugreuth) | 12 | 214 | very hard |
Stadtwerke Metzingen mixes two sources and says so on its street-by-street hardness page. Bodensee water in Neuhausen and Hartsiedlung is 160.1 mg/L CaCO₃, local own water in the Kernstadt and Glems is 267.2 mg/L, and the mixed water in the Hochzone, Weinbergfuß and Neugreuth is 214.2 mg/L. Your street decides which one comes out of the tap.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 12 °dH |
|---|---|
| Utility | Stadtwerke Metzingen |
How Metzingen compares
- Tap water in Metzingen is close to the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 381 of 809 in Germany (1 = hardest); 52 % of these cities have softer water.
- In Baden-Württemberg it is number 79 of 146 cities; the regional median is 12.8 °dH.
- Nearest city with clearly softer water: Eningen unter Achalm, 6 km away (9.1 °dH).
- Nearest city with clearly harder water: Dettingen an der Erms, 12 km away (15.3 °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 Metzingen
| Brand | Setting for this water |
|---|---|
| Bosch | H03 |
| Miele | 12 °dH |
| AEG / Electrolux | 3 |
| 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 Metzingen water hard or soft?
It is very hard: 214 mg/L as CaCO₃ (12.5 gpg, 12 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Metzingen 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 Metzingen water?
12.5 gpg, equal to 12 °dH, 21.4 °fH or 214 mg/L calcium carbonate.
What dishwasher salt setting should I use in Metzingen?
For 214 mg/L (12 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Metzingen?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Stadtwerke Metzingen – Metzinger Trinkwasser: Wasserherkunft und Härtebereiche je Straße (2026). Method: figure published by the water supplier. Stadtwerke Metzingen – Metzinger Trinkwasser: Wasserherkunft und Härtebereiche je Straße · Outdated figure? Tell us