Water hardness in Büchen
6.6 °dH moderately hard
Tap water in Büchen is moderately hard: 6.6 °dH (118 mg/L · 6.9 gpg · 11.8 °fH).
Source: Gemeinde Büchen Wasserwerk - Werkausgangsprobe Wasserwerk Büchen (LADR GmbH, Bericht 08.04.2026) (2026-03) · data checked 2026-11-06
For Büchen in Schleswig-Holstein, the figure comes from a single plant-outlet sample taken at the Büchen waterworks in March 2026. The total hardness of 117.8 mg/L CaCO₃ was computed from calcium and magnesium rather than measured directly. It is one sample, not an annual value, and the source does not say whether it applies to every Ortsteil. Ask the waterworks if you need a figure for your street.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 6.6 °dH |
|---|---|
| gesamthaerte_mmol_l | 1.19 |
| Utility | Gemeinde Büchen Wasserwerk (Wasserwerk Büchen) |
How Büchen compares
- Tap water in Büchen is 43 % softer than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 662 of 809 in Germany (1 = hardest); 17 % of these cities have softer water.
- In Schleswig-Holstein it is number 25 of 26 cities; the regional median is 12 °dH.
- Nearest city with clearly softer water: Kirchlinteln, 106 km away (4.6 °dH).
- Nearest city with clearly harder water: Boizenburg, 12 km away (14.4 °dH).
Ranking of the hardest and softest water in Germany →
What it means at home
- Visible kettle scale every few weeks; vinegar or citric acid is enough.
- Water heater and washing machine: some long-term scale; a scale inhibitor slows it.
- Dishwasher: medium salt setting.
- Softener optional; pays off mainly with a gas boiler or tankless heater.
How much salt will you use for softening?
Optional. A scale inhibitor or a small softener protects the heater; soap savings are modest.
Descale a coffee machine or kettle about every 3 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Büchen
| Brand | Setting for this water |
|---|---|
| Bosch | H01 |
| Miele | 7 °dH |
| AEG / Electrolux | 2 |
| Beko | 2nd |
| Hoover | S1 |
| LG | H1 |
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 Büchen water hard or soft?
It is moderately hard: 118 mg/L as CaCO₃ (6.9 gpg, 6.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Büchen 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 Büchen water?
6.9 gpg, equal to 6.6 °dH, 11.8 °fH or 118 mg/L calcium carbonate.
What dishwasher salt setting should I use in Büchen?
For 118 mg/L (6.6 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Büchen?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: Gemeinde Büchen Wasserwerk - Werkausgangsprobe Wasserwerk Büchen (LADR GmbH, Bericht 08.04.2026) (2026-03). Method: computed from supplier's calcium and magnesium. Gemeinde Büchen Wasserwerk - Werkausgangsprobe Wasserwerk Büchen (LADR GmbH, Bericht 08.04.2026) · Outdated figure? Tell us