AquaScaleEurope

Portland vs Madrid

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

Portland

united states

28mg/L

Soft Water

1.96°e
Soft
Base Unit (CaCO3): 28 mg/LLocal Unit
Full Portland 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 AreaPortlandMadrid
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: 105 mg/L

Madrid is significantly harder than Portland — a difference that has major household implications. Appliances, boiler warranties, and detergent costs will differ substantially.

Moving from Portland to Madrid?

If you're relocating from Portland to Madrid, 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