Water hardness in Kőröshegy
21 °dH very hard
Tap water in Kőröshegy is very hard: 21 °dH (375 mg/L · 21.9 gpg · 37.5 °fH).
Source: NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) (2024) · data checked 2026-10-21
NNGYK's 2024 report gives 374.8 mg/L CaCO₃ for Kőröshegy, which is very hard. The village is in Somogy county, and the report does not describe the local source. Limescale on kettles, shower screens and water heaters is the main everyday effect.
Hungarian suppliers report total hardness in German degrees (nk°) or mg/L CaO; the limit is 50–350 mg/L CaO.
Water data
| Total hardness | 21 °dH |
|---|
How Kőröshegy compares
- Tap water in Kőröshegy is 30 % harder than the median of the 3053 cities we track in Hungary (16.1 °dH).
- By hardness it ranks 642 of 3053 in Hungary (1 = hardest); 78 % of these cities have softer water.
- In Somogy it is number 74 of 240 cities; the regional median is 19.1 °dH.
- Nearest city with clearly softer water: Balatonbozsok, 28 km away (12.3 °dH).
- Nearest city with clearly harder water: Kereki, 4 km away (29.8 °dH).
Ranking of the hardest and softest water in Hungary →
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 Kőröshegy
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 21 °dH |
| AEG / Electrolux | 5 |
| Beko | 6th |
| Hoover | S3 |
| LG | H4 |
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 Kőröshegy water hard or soft?
It is very hard: 375 mg/L as CaCO₃ (21.9 gpg, 21 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Kőröshegy safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Hungarian suppliers report total hardness in German degrees (nk°) or mg/L CaO; the limit is 50–350 mg/L CaO.
How many grains per gallon is Kőröshegy water?
21.9 gpg, equal to 21 °dH, 37.5 °fH or 375 mg/L calcium carbonate.
What dishwasher salt setting should I use in Kőröshegy?
For 375 mg/L (21 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Kőröshegy?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) (2024). Method: figure published by the water supplier. NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) · Outdated figure? Tell us