AquaScaleEurope

The Hague vs Madrid

Water hardness comparison — how the two cities differ and what it means for your home.

The Hague

netherlands

86mg/L

Moderately Hard Water

6.02°e
Medium
Base Unit (CaCO3): 86 mg/LLocal Unit
Full The Hague data →
Harder

Madrid

spain

133mg/L

Hard Water

9.31°e
Hard
Base Unit (CaCO3): 133 mg/LLocal Unit
Full Madrid data →

Side-by-Side Impact

Impact AreaThe HagueMadrid
Limescale buildupMinimalModerate — monthly descaling
Boiler/heating riskLow riskMonitor annually
Dishwasher salt settingLow setting (1–2)High salt setting (3–5)
Skin & hair impactLow riskLow risk
Detergent usageStandard dose+15–25% more

Key Findings

Hardness Difference: 47 mg/L

Madrid is meaningfully harder than The Hague. Residents moving between these cities should adjust dishwasher salt settings, descaling frequency, and boiler service schedules.

Compare With Other Cities