Water hardness in Bopfingen
9.6 °dH hard
Tap water in Bopfingen is hard: 9.6 °dH (171 mg/L · 10 gpg · 17.1 °fH).
Source: Prüfbericht Wasserwerk Aufhausen 10.05.2023 (2023) · data checked 2026-10-29
Stadtwerke Bopfingen's Wasserwerk Aufhausen was tested on 10 May 2023, giving 171.4 mg/L CaCO₃, with calcium at 55.1 mg/L and magnesium at 8.0 mg/L. Aalen, 19 km away, reports 227.6 mg/L, and Heidenheim an der Brenz 306.5 mg/L. The test comes from one waterworks, so other parts of the network may differ.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 9.6 °dH |
|---|---|
| Calcium (mg/L) | 55.1 |
| Magnesium (mg/L) | 8 |
| mmol_l | 1.7 |
| Utility | Stadtwerke Bopfingen |
How Bopfingen compares
- Tap water in Bopfingen is 17 % softer than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 495 of 809 in Germany (1 = hardest); 38 % of these cities have softer water.
- In Baden-Württemberg it is number 101 of 146 cities; the regional median is 12.8 °dH.
- Nearest city with clearly softer water: Neuffen, 79 km away (7.6 °dH).
- Nearest city with clearly harder water: Neresheim, 12 km away (19.5 °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 Bopfingen
| Brand | Setting for this water |
|---|---|
| Bosch | H02 |
| Miele | 10 °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 Bopfingen water hard or soft?
It is hard: 171 mg/L as CaCO₃ (10 gpg, 9.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Bopfingen 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 Bopfingen water?
10 gpg, equal to 9.6 °dH, 17.1 °fH or 171 mg/L calcium carbonate.
What dishwasher salt setting should I use in Bopfingen?
For 171 mg/L (9.6 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Bopfingen?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: Prüfbericht Wasserwerk Aufhausen 10.05.2023 (2023). Method: figure published by the water supplier. Prüfbericht Wasserwerk Aufhausen 10.05.2023 · Outdated figure? Tell us