Water hardness in Dejtár
27.4 °dH very hard
Tap water in Dejtár is very hard: 27.4 °dH (489 mg/L · 28.6 gpg · 48.9 °fH).
Source: NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) (2024) · data checked 2026-10-21
Dejtár, in Nógrád county, is reported at 489.0 mg/L as CaCO3 in the 2024 NNGYK settlement data, one of the harder values in this batch. We have no verified detail on the local source or any supply zones, so the figure should be read as the published value for the settlement. At this level, limescale on taps, boilers and washing machines builds up quickly.
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 | 27.4 °dH |
|---|
How Dejtár compares
- Tap water in Dejtár is 70 % harder than the median of the 3053 cities we track in Hungary (16.1 °dH).
- By hardness it ranks 92 of 3053 in Hungary (1 = hardest); 97 % of these cities have softer water.
- In Nógrád it is number 29 of 139 cities; the regional median is 12.7 °dH.
- Nearest city with clearly softer water: Bánk, 12 km away (15.5 °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 Dejtár
| Brand | Setting for this water |
|---|---|
| Bosch | H06 |
| Miele | 27 °dH |
| AEG / Electrolux | 6 |
| Beko | 6th |
| Hoover | S4 |
| 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 Dejtár water hard or soft?
It is very hard: 489 mg/L as CaCO₃ (28.6 gpg, 27.4 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Dejtár 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 Dejtár water?
28.6 gpg, equal to 27.4 °dH, 48.9 °fH or 489 mg/L calcium carbonate.
What dishwasher salt setting should I use in Dejtár?
For 489 mg/L (27.4 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Dejtár?
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