Water hardness in Loutraki
475 mg/L very hard
Tap water in Loutraki is very hard: 475 mg/L (27.7 gpg · 26.6 °dH · 47.5 °fH).
Source: EDEYA labcheck – ΔΕΥΑ Λουτρακίου (2025) · data checked 2026-10-21
Range across supply zones: 468–482 mg/L.
Municipal water utilities (DEYA) in Greece usually combine boreholes in limestone aquifers with reservoirs and springs. The reported hardness is 475.0 mg/L CaCO₃, with measurements from 468.0 to 482.0 mg/L. Scale forms fast on heaters and fittings; a water softener is a common remedy.
Greek utilities report total hardness in mg/L CaCO₃.
Water data
| Total hardness | 475 mg/L |
|---|---|
| Utility | ΔΕΥΑ Λουτρακίου |
How Loutraki compares
- Tap water in Loutraki is 100 % harder than the median of the 134 cities we track in Greece (237 mg/L).
- By hardness it ranks 6 of 134 in Greece (1 = hardest); 96 % of these cities have softer water.
- In Peloponnese it is number 1 of 6 cities; the regional median is 337 mg/L.
- Nearest city with clearly softer water: Perachora, 6 km away (374 mg/L).
Ranking of the hardest and softest water in Greece →
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 Loutraki
| Brand | Setting for this water |
|---|---|
| Bosch | H06 |
| Miele | 27 °dH |
| AEG / Electrolux | 6 |
| Beko | 6th |
| Hoover | S4 |
| LG | H4 |
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 Loutraki water hard or soft?
It is very hard: 475 mg/L as CaCO₃ (27.7 gpg, 26.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Loutraki safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Greek utilities report total hardness in mg/L CaCO₃.
How many grains per gallon is Loutraki water?
27.7 gpg, equal to 26.6 °dH, 47.5 °fH or 475 mg/L calcium carbonate.
What dishwasher salt setting should I use in Loutraki?
For 475 mg/L (26.6 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Loutraki?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: EDEYA labcheck – ΔΕΥΑ Λουτρακίου (2025). Method: figure published by the water supplier. EDEYA labcheck – ΔΕΥΑ Λουτρακίου · Outdated figure? Tell us