Water hardness in Herceghalom
30.3 °dH very hard
Tap water in Herceghalom is very hard: 30.3 °dH (542 mg/L · 31.6 gpg · 54.2 °fH).
Source: NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) (2024) · data checked 2026-10-29
Herceghalom, in Pest county, is reported at 541.7 mg/L as CaCO₃ in the NNGYK 2024 report, which is very hard and one of the highest values in this batch. The dataset does not name the supply source. At this level limescale forms fast, so a softener is worth considering.
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 | 30.3 °dH |
|---|
How Herceghalom compares
- Tap water in Herceghalom is 89 % harder than the median of the 3053 cities we track in Hungary (16.1 °dH).
- By hardness it ranks 25 of 3053 in Hungary (1 = hardest); 99 % of these cities have softer water.
- In Pest it is number 2 of 193 cities; the regional median is 14.5 °dH.
- Nearest city with clearly softer water: Biatorbágy, 6 km away (17.8 °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 Herceghalom
| Brand | Setting for this water |
|---|---|
| Bosch | H06 |
| Miele | 30 °dH |
| AEG / Electrolux | 7 |
| 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 Herceghalom water hard or soft?
It is very hard: 542 mg/L as CaCO₃ (31.6 gpg, 30.3 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Herceghalom 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 Herceghalom water?
31.6 gpg, equal to 30.3 °dH, 54.2 °fH or 542 mg/L calcium carbonate.
What dishwasher salt setting should I use in Herceghalom?
For 542 mg/L (30.3 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Herceghalom?
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