Water hardness in Lieto
2.5 °dH soft
Tap water in Lieto is soft: 2.5 °dH (45 mg/L · 2.6 gpg · 4.5 °fH).
Source: Liedon Vesi, Veden laatu (2026) · data checked 2026-10-29
Lieto's water comes through Liedon Vesi, with Turun Seudun Vesi artificial groundwater listed as the source. The utility's quality page reports 44.6 mg/L, which is soft. Artificial groundwater is surface water that has been infiltrated into the ground and then recovered, which keeps minerals low.
Finnish waterworks report hardness in °dH; most supplies are soft.
Water data
| Total hardness | 2.5 °dH |
|---|---|
| Utility | Liedon Vesi (Turun Seudun Vesi artificial groundwater) |
How Lieto compares
- Tap water in Lieto is 28 % softer than the median of the 76 cities we track in Finland (3.5 °dH).
- By hardness it ranks 68 of 76 in Finland (1 = hardest); 9 % of these cities have softer water.
- Nearest city with clearly harder water: Salo, 39 km away (4.5 °dH).
Ranking of the hardest and softest water in Finland →
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 Lieto
| 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 Lieto water hard or soft?
It is soft: 45 mg/L as CaCO₃ (2.6 gpg, 2.5 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Lieto safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Finnish waterworks report hardness in °dH; most supplies are soft.
How many grains per gallon is Lieto water?
2.6 gpg, equal to 2.5 °dH, 4.5 °fH or 45 mg/L calcium carbonate.
What dishwasher salt setting should I use in Lieto?
For 45 mg/L (2.5 °dH) check your manufacturer's table: level 0–1, usually no salt.
Do I need a water softener in Lieto?
No. With soft water a softener adds nothing.
Source
Source: Liedon Vesi, Veden laatu (2026). Method: figure published by the water supplier. Liedon Vesi, Veden laatu · Outdated figure? Tell us