Water hardness in Laupheim
17.7 °dH very hard
Tap water in Laupheim is very hard: 17.7 °dH (316 mg/L · 18.5 gpg · 31.6 °fH).
Source: Stadtwerke Laupheim, Trinkwasseranalyse Daten (Stand 20.06.2023) (2023-06) · data checked 2026-11-03
Stadtwerke Laupheim lists 17.7 °dH, classed as hard, for Laupheim and Bihlafingen. The analysis is dated 20 June 2023, so it is more than three years old and is marked stale; no newer one was found. The same sheet gives slightly higher values for Ober- and Untersulmetingen and for Baustetten, which are not part of this figure. Ask the utility for a current analysis before relying on the exact number.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 17.7 °dH |
|---|---|
| Utility | Stadtwerke Laupheim (Eigenbetrieb) |
How Laupheim compares
- Tap water in Laupheim is 54 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 159 of 809 in Germany (1 = hardest); 80 % of these cities have softer water.
- In Baden-Württemberg it is number 30 of 146 cities; the regional median is 12.8 °dH.
- Nearest city with clearly softer water: Ochsenhausen, 15 km away (13.7 °dH).
- Nearest city with clearly harder water: Radolfzell am Bodensee, 87 km away (22.6 °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 Laupheim
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 18 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| 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 Laupheim water hard or soft?
It is very hard: 316 mg/L as CaCO₃ (18.5 gpg, 17.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Laupheim 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 Laupheim water?
18.5 gpg, equal to 17.7 °dH, 31.6 °fH or 316 mg/L calcium carbonate.
What dishwasher salt setting should I use in Laupheim?
For 316 mg/L (17.7 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Laupheim?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Stadtwerke Laupheim, Trinkwasseranalyse Daten (Stand 20.06.2023) (2023-06). Method: older figure, source currently unavailable. Stadtwerke Laupheim, Trinkwasseranalyse Daten (Stand 20.06.2023) · Outdated figure? Tell us