Bologna vs Milan
Water hardness comparison — how the two cities differ and what it means for your home.
HarderFull Bologna data →
Bologna
italy
256mg/L
Very Hard Water
17.92°e
Very Hard
Base Unit (CaCO3): 256 mg/LLocal Unit
Milan
italy
214mg/L
Very Hard Water
14.98°e
Very Hard
Base Unit (CaCO3): 214 mg/LLocal Unit
Side-by-Side Impact
| Impact Area | Bologna | Milan |
|---|---|---|
| Limescale buildup | Rapid — visible within weeks | Rapid — visible within weeks |
| Boiler/heating risk | Annual descaling required | Annual descaling required |
| Dishwasher salt setting | Max salt setting (5–7) | Max salt setting (5–7) |
| Skin & hair impact | High eczema/dry skin risk | High eczema/dry skin risk |
| Detergent usage | +30–40% more detergent | +30–40% more detergent |
Key Findings
Hardness Difference: 42 mg/L
Bologna is meaningfully harder than Milan. Residents moving between these cities should adjust dishwasher salt settings, descaling frequency, and boiler service schedules.