Water hardness in Siójut
20.7 °dH very hard
Tap water in Siójut is very hard: 20.7 °dH (369 mg/L · 21.6 gpg · 36.9 °fH).
Source: NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) (2024) · data checked 2026-10-21
Siójut, in Somogy county, is listed at 369.4 mg/L CaCO₃ in the 2024 NNGYK report, in the very hard range. The source gives no detail on the local supply, so we do not guess at it. Scale deposits in kettles and boilers are the main practical effect.
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 | 20.7 °dH |
|---|
How Siójut compares
- Tap water in Siójut is 29 % harder than the median of the 3053 cities we track in Hungary (16.1 °dH).
- By hardness it ranks 701 of 3053 in Hungary (1 = hardest); 76 % of these cities have softer water.
- In Somogy it is number 86 of 240 cities; the regional median is 19.1 °dH.
- Nearest city with clearly softer water: Enying, 10 km away (12.1 °dH).
- Nearest city with clearly harder water: Csopak, 20 km away (26.4 °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 Siójut
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 21 °dH |
| AEG / Electrolux | 5 |
| Beko | 6th |
| 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 Siójut water hard or soft?
It is very hard: 369 mg/L as CaCO₃ (21.6 gpg, 20.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Siójut 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 Siójut water?
21.6 gpg, equal to 20.7 °dH, 36.9 °fH or 369 mg/L calcium carbonate.
What dishwasher salt setting should I use in Siójut?
For 369 mg/L (20.7 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Siójut?
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