Water hardness in Narva-Jõesuu
0.34 mmol/L soft
Tap water in Narva-Jõesuu is soft: 0.34 mmol/L (34 mg/L · 2 gpg · 1.9 °dH).
Source: Terviseamet, veevärkide veeproovid (avalikud andmed) 2021–2025 (2025-08) · data checked 2026-10-20
Range across supply zones: 32–35 mg/L.
Estonian laboratories report total hardness (üldkaredus) in mmol/L or mg-eq/L (1 mmol/L = 2 mg-eq/L = 100 mg/L CaCO₃); groundwater supplies are mostly hard.
Water data
| Total hardness | 0.34 mmol/L |
|---|
How Narva-Jõesuu compares
- Tap water in Narva-Jõesuu is 85 % softer than the median of the 28 cities we track in Estonia (2.32 mmol/L).
- By hardness it ranks 28 of 28 in Estonia (1 = hardest); 0 % of these cities have softer water.
- Nearest city with clearly harder water: Narva, 12 km away (1.5 mmol/L).
Ranking of the hardest and softest water in Estonia →
What it means at home
- Little or no limescale in kettles, water heaters or washing machines.
- Soap lathers easily; water does not dry skin or hair.
- Dishwasher: salt setting at minimum or off.
- No softener needed; a jug filter only changes taste.
How much salt will you use for softening?
No. Water this soft does not need softening.
Descale a coffee machine or kettle about every 6 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Narva-Jõesuu
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 2 °dH |
| AEG / Electrolux | 1 |
| Beko | 1st |
| Hoover | S0 |
| LG | H0 |
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 Narva-Jõesuu water hard or soft?
It is soft: 34 mg/L as CaCO₃ (2 gpg, 1.9 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Narva-Jõesuu safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Estonian laboratories report total hardness (üldkaredus) in mmol/L or mg-eq/L (1 mmol/L = 2 mg-eq/L = 100 mg/L CaCO₃); groundwater supplies are mostly hard.
How many grains per gallon is Narva-Jõesuu water?
2 gpg, equal to 1.9 °dH, 3.4 °fH or 34 mg/L calcium carbonate.
What dishwasher salt setting should I use in Narva-Jõesuu?
For 34 mg/L (1.9 °dH) check your manufacturer's table: level 0–1, usually no salt.
Do I need a water softener in Narva-Jõesuu?
No. With soft water a softener adds nothing.
Source
Source: Terviseamet, veevärkide veeproovid (avalikud andmed) 2021–2025 (2025-08). Method: own measurement. Terviseamet, veevärkide veeproovid (avalikud andmed) 2021–2025 · Outdated figure? Tell us