Water Hardness Atlas ZIP / postcode

Water hardness in Őrhalom

28.1 °dH very hard

Tap water in Őrhalom is very hard: 28.1 °dH (502 mg/L · 29.3 gpg · 50.2 °fH).

<6060–120120–180>180 mg/L

Source: NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) (2024) · data checked 2026-10-29

Őrhalom in Nógrád county has a reported hardness of 502.4 mg/L CaCO₃ in NNGYK's 2024 data, among the highest figures in this group. The source and any treatment are not described in the dataset, so the cause cannot be stated here. At this level scale builds up quickly, and a softener or regular descaling is advisable.

Hungarian suppliers report total hardness in German degrees (nk°) or mg/L CaO; the limit is 50–350 mg/L CaO.

Water data

Total hardness28.1 °dH

How Őrhalom compares

Ranking of the hardest and softest water in Hungary →

What it means at home

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 Őrhalom

BrandSetting for this water
BoschH06
Miele28 °dH
AEG / Electrolux6
Beko6th
HooverS4
LGH4

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 Őrhalom water hard or soft?

It is very hard: 502 mg/L as CaCO₃ (29.3 gpg, 28.1 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.

Is tap water in Őrhalom 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 Őrhalom water?

29.3 gpg, equal to 28.1 °dH, 50.2 °fH or 502 mg/L calcium carbonate.

What dishwasher salt setting should I use in Őrhalom?

For 502 mg/L (28.1 °dH) check your manufacturer's table: maximum level (5–7).

Do I need a water softener in Őrhalom?

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

Nearby cities

Hugyag28.5 °dHCsitár28.5 °dHIliny27.9 °dHPatvarc28.2 °dHNógrádmarcal28.2 °dHVarsány9.2 °dH
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