Water hardness in Steinenbronn
9.1 °dH hard
Tap water in Steinenbronn is hard: 9.1 °dH (163 mg/L · 9.5 gpg · 16.3 °fH).
Source: Zweckverband Ammertal-Schönbuchgruppe, Trinkwasseranalyse Jahresmittelwerte 2025 (2025) · data checked 2026-11-06
The figure for Steinenbronn is the 2025 annual mean from the Zweckverband Ammertal-Schönbuchgruppe: 162.6 mg/L CaCO₃. It is a yearly average for the association's network, so single readings during the year can differ. When dosing dishwasher and laundry products, follow the manufacturer's guidance for this hardness level.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 9.1 °dH |
|---|---|
| Utility | Zweckverband Ammertal-Schönbuchgruppe (Holzgerlingen) |
How Steinenbronn compares
- Tap water in Steinenbronn is 21 % softer than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 515 of 809 in Germany (1 = hardest); 36 % of these cities have softer water.
- In Baden-Württemberg it is number 107 of 146 cities; the regional median is 12.8 °dH.
- Nearest city with clearly softer water: Neubulach, 31 km away (3.5 °dH).
- Nearest city with clearly harder water: Sindelfingen, 11 km away (16.5 °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 Steinenbronn
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 9 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S1 |
| 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 Steinenbronn water hard or soft?
It is hard: 163 mg/L as CaCO₃ (9.5 gpg, 9.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Steinenbronn 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 Steinenbronn water?
9.5 gpg, equal to 9.1 °dH, 16.3 °fH or 163 mg/L calcium carbonate.
What dishwasher salt setting should I use in Steinenbronn?
For 163 mg/L (9.1 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Steinenbronn?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Zweckverband Ammertal-Schönbuchgruppe, Trinkwasseranalyse Jahresmittelwerte 2025 (2025). Method: figure published by the water supplier. Zweckverband Ammertal-Schönbuchgruppe, Trinkwasseranalyse Jahresmittelwerte 2025 · Outdated figure? Tell us