Water hardness in Taunusstein
10.3 °dH very hard
Tap water in Taunusstein is very hard: 10.3 °dH (185 mg/L · 10.8 gpg · 18.5 °fH).
Source: Stadtwerke Taunusstein, Trinkwasseranalyse Versorgungsbereich HB Berg (zone PDF from Versorgungsbereiche overview) (2026-09) · data checked 2026-10-23
Range across supply zones: 80–304 mg/L.
12 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| Versorgungsbereich HB Berg | 14.3 | 255 | very hard |
| Versorgungsbereich HB Dieling (Zone Dieling, Hahn Nord) | 13.8 | 246 | very hard |
| Versorgungsbereich HB Eschbach (Zone Eschbach, Hahn Süd) | 4.5 | 80 | moderately hard |
| Versorgungsbereich HB Hambach | 8.1 | 145 | hard |
| Versorgungsbereich HB Niederlibbach | 11.1 | 198 | very hard |
| Versorgungsbereich HB Orlen | 11.9 | 212 | very hard |
| Versorgungsbereich HB Seelbacher Weg (Neuhof Süd, Siedlung Platte) | 17 | 304 | very hard |
| Versorgungsbereich HB Seitzenhahn (Seitzenhahn und Roßbachhöhe) | 13.8 | 246 | very hard |
| Versorgungsbereich HB Wachhecken (Bleidenstadt) | 9.6 | 171 | hard |
| Versorgungsbereich HB Watzhahn | 8.7 | 155 | hard |
| Versorgungsbereich HB Wehen (Zone Wehen) | 8.6 | 154 | hard |
| Versorgungsbereich HB Wingsbach | 5.3 | 95 | moderately hard |
Stadtwerke Taunusstein publishes separate analyses for 12 supply areas, and 184.7 mg/L CaCO₃ is the median of those zones. The range is wide, from 80.3 mg/L in the Eschbach zone to 303.5 mg/L in the Seelbacher Weg zone. The zone PDFs do not explain the spread, so we do not offer a geological reason. Find your district in the Stadtwerke zone overview, because the median fits very few addresses exactly.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 10.3 °dH |
|---|---|
| Utility | Stadtwerke Taunusstein |
How Taunusstein compares
- Tap water in Taunusstein is 10 % softer than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 471 of 809 in Germany (1 = hardest); 42 % of these cities have softer water.
- In Hessen it is number 42 of 73 cities; the regional median is 10.7 °dH.
- Nearest city with clearly softer water: Niedernhausen, 12 km away (5.2 °dH).
- Nearest city with clearly harder water: Bad Schwalbach, 10 km away (13.1 °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 Taunusstein
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 10 °dH |
| AEG / Electrolux | 2 |
| 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 Taunusstein water hard or soft?
It is very hard: 185 mg/L as CaCO₃ (10.8 gpg, 10.3 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Taunusstein 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 Taunusstein water?
10.8 gpg, equal to 10.3 °dH, 18.5 °fH or 185 mg/L calcium carbonate.
What dishwasher salt setting should I use in Taunusstein?
For 185 mg/L (10.3 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Taunusstein?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Stadtwerke Taunusstein, Trinkwasseranalyse Versorgungsbereich HB Berg (zone PDF from Versorgungsbereiche overview) (2026-09). Method: figure published by the water supplier. Stadtwerke Taunusstein, Trinkwasseranalyse Versorgungsbereich HB Berg (zone PDF from Versorgungsbereiche overview) · Outdated figure? Tell us