Water hardness in Haag in Oberbayern
16.5 °dH very hard
Tap water in Haag in Oberbayern is very hard: 16.5 °dH (295 mg/L · 17.2 gpg · 29.4 °fH).
Source: Markt Haag i. OB, Wasserwerk: Gesamthärte Mischwasser (sample 22.05.2025) (2025-05) · data checked 2026-11-05
The municipal waterworks of Markt Haag i. OB reports the total hardness of its mixed water, sampled on 22 May 2025: 294.5 mg/L CaCO₃, about 16.5 °dH. Mixed water means the supply blends more than one source; the document does not say which. At this level limescale builds up quickly on taps and inside appliances.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 16.5 °dH |
|---|---|
| Utility | Markt Haag i. OB (municipal Wasserwerk) |
How Haag in Oberbayern compares
- Tap water in Haag in Oberbayern is 43 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 200 of 809 in Germany (1 = hardest); 75 % of these cities have softer water.
- In Bayern it is number 62 of 137 cities; the regional median is 15.8 °dH.
- Nearest city with clearly softer water: Altötting, 38 km away (7.7 °dH).
- Nearest city with clearly harder water: Ampfing, 20 km away (26 °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 Haag in Oberbayern
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 16 °dH |
| AEG / Electrolux | 4 |
| Beko | 5th |
| Hoover | S2 |
| 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 Haag in Oberbayern water hard or soft?
It is very hard: 295 mg/L as CaCO₃ (17.2 gpg, 16.5 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Haag in Oberbayern 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 Haag in Oberbayern water?
17.2 gpg, equal to 16.5 °dH, 29.4 °fH or 295 mg/L calcium carbonate.
What dishwasher salt setting should I use in Haag in Oberbayern?
For 295 mg/L (16.5 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Haag in Oberbayern?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Markt Haag i. OB, Wasserwerk: Gesamthärte Mischwasser (sample 22.05.2025) (2025-05). Method: figure published by the water supplier. Markt Haag i. OB, Wasserwerk: Gesamthärte Mischwasser (sample 22.05.2025) · Outdated figure? Tell us