Water hardness in Tác
17.7 °dH very hard
Tap water in Tác is very hard: 17.7 °dH (316 mg/L · 18.5 gpg · 31.6 °fH).
Source: NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) (2024) · data checked 2026-10-21
Tác lies on the edge of the Vértes and Bakony hills, where karst water and wells in carbonate rock are the usual sources; the exact supply here is not confirmed. Limestone and dolomite of the Transdanubian Mountains release calcium and magnesium into the water, which is why supplies tied to this karst are among the hardest in Hungary; the 2024 national report puts Tác at 315.9 mg/L CaCO₃, a very hard reading. Expect heavy limescale in kettles, boilers and on taps; descaling and a softener are 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 | 17.7 °dH |
|---|
How Tác compares
- Tap water in Tác is 10 % harder than the median of the 3053 cities we track in Hungary (16.1 °dH).
- By hardness it ranks 1228 of 3053 in Hungary (1 = hardest); 59 % of these cities have softer water.
- In Fejér it is number 101 of 144 cities; the regional median is 19.5 °dH.
- Nearest city with clearly softer water: Soponya, 9 km away (13.8 °dH).
- Nearest city with clearly harder water: Belsőbáránd, 8 km away (23.6 °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 Tác
| 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 Tác water hard or soft?
It is very hard: 316 mg/L as CaCO₃ (18.5 gpg, 17.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Tác 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 Tác water?
18.5 gpg, equal to 17.7 °dH, 31.6 °fH or 316 mg/L calcium carbonate.
What dishwasher salt setting should I use in Tác?
For 316 mg/L (17.7 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Tác?
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