Bologna vs London
Water hardness comparison — how the two cities differ and what it means for your home.
Bologna
italy
256mg/L
Very Hard Water
17.92°e
Very Hard
Base Unit (CaCO3): 256 mg/LLocal Unit
HarderFull London data →
London
united kingdom
277mg/L
Very Hard Water
19.39°e
Very Hard
Base Unit (CaCO3): 277 mg/LLocal Unit
Side-by-Side Impact
| Impact Area | Bologna | London |
|---|---|---|
| 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: 21 mg/L
The difference between Bologna and London is relatively small. Both cities fall into the same hardness category and would use similar appliance settings and treatment products.