Oulu vs Turku
Water hardness comparison — how the two cities differ and what it means for your home.
HarderFull Turku data →
Turku
finland
73mg/L
Moderately Hard Water
5.11°e
Medium
Base Unit (CaCO3): 73 mg/LLocal Unit
Side-by-Side Impact
| Impact Area | Oulu | Turku |
|---|---|---|
| Limescale buildup | Minimal | Minimal |
| Boiler/heating risk | Low risk | Low risk |
| Dishwasher salt setting | Low setting (1–2) | Low setting (1–2) |
| Skin & hair impact | Low risk | Low risk |
| Detergent usage | Standard dose | Standard dose |
Key Findings
Hardness Difference: 30 mg/L
Turku is meaningfully harder than Oulu. Residents moving between these cities should adjust dishwasher salt settings, descaling frequency, and boiler service schedules.