Water hardness in Eresztvény
17.6 °dH very hard
Tap water in Eresztvény is very hard: 17.6 °dH (314 mg/L · 18.3 gpg · 31.4 °fH).
Source: NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) (2024) · data checked 2026-10-21
Eresztvény, in Nógrád county, is listed at 314.1 mg/L CaCO₃ in NNGYK's 2024 drinking-water data, which is very hard. The exact source of the village's supply is not confirmed here, so this is the published value for the settlement. Limescale on kettles and water heaters will be noticeable, and a softener may be worthwhile.
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 | 17.6 °dH |
|---|
How Eresztvény compares
- Tap water in Eresztvény is 9 % harder than the median of the 3053 cities we track in Hungary (16.1 °dH).
- By hardness it ranks 1242 of 3053 in Hungary (1 = hardest); 58 % of these cities have softer water.
- In Nógrád it is number 37 of 139 cities; the regional median is 12.7 °dH.
- Nearest city with clearly softer water: Somoskőújfalu, 2 km away (13.5 °dH).
- Nearest city with clearly harder water: Rónafalu, 4 km away (30.3 °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 Eresztvény
| 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 Eresztvény water hard or soft?
It is very hard: 314 mg/L as CaCO₃ (18.3 gpg, 17.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Eresztvény 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 Eresztvény water?
18.3 gpg, equal to 17.6 °dH, 31.4 °fH or 314 mg/L calcium carbonate.
What dishwasher salt setting should I use in Eresztvény?
For 314 mg/L (17.6 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Eresztvény?
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