Duisburg vs London
Water hardness comparison — how the two cities differ and what it means for your home.
Duisburg
germany
169mg/L
Hard Water
11.83°e
Hard
Base Unit (CaCO3): 169 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 | Duisburg | London |
|---|---|---|
| Limescale buildup | Moderate — monthly descaling | Rapid — visible within weeks |
| Boiler/heating risk | Monitor annually | Annual descaling required |
| Dishwasher salt setting | High salt setting (3–5) | Max salt setting (5–7) |
| Skin & hair impact | Moderate risk | High eczema/dry skin risk |
| Detergent usage | +15–25% more | +30–40% more detergent |
Key Findings
Hardness Difference: 108 mg/L
London is significantly harder than Duisburg — a difference that has major household implications. Appliances, boiler warranties, and detergent costs will differ substantially.
Moving from Duisburg to London?
If you're relocating from Duisburg to London, expect visible limescale on taps and shower heads within weeks. You'll need to recalibrate your dishwasher's salt setting, increase kettle descaling frequency, and check your boiler warranty requirements. A shower filter and under-sink scale inhibitor are worth considering immediately.
Compare With Other Cities
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