Side-by-Side Water Hardness Calculator

Compare Water Hardness

Analyze real-time PPM, Clark degrees, limescale risk, and dishwasher salt settings between any two UK postcode sectors.

Water Quality Comparison Analysis

Executive Summary: Sector BS1 1 vs Sector M1 1

Comparing tap water mineral concentration between Sector BS1 1 (Bristol Water) and Sector M1 1 (United Utilities) reveals a water hardness difference of 220 PPM. Sector M1 1 has softer water at 45 PPM (Soft) compared to Sector BS1 1 at 265 PPM (Hard).

Limescale risk and boiler heating efficiency vary based on these mineral levels. Households in Sector BS1 1 experience higher heating element degradation and kettle scale accumulation due to elevated calcium carbonate density (265 PPM vs 45 PPM).

For home appliance setup, Bosch dishwasher water softener settings should be calibrated accordingly: Sector BS1 1 requires setting H04 whereas Sector M1 1 recommends setting H00 (No Salt Required).

NP

Sector M1 1 has 220 PPM LOWER water hardness than Sector BS1 1

Lower PPM indicates softer water, reduced limescale risk, and lower detergent usage.

Water Metric
Sector BS1 1Outcode: BS1
Sector M1 1Outcode: M1
Hardness (PPM)
265 PPM
45 PPM
Clark Degrees
18.6 °Clark
3.2 °Clark
Classification
Hard
Soft
Bosch Salt Setting
H04
H00 (No Salt Required)
Water Supplier
Bristol Water
United Utilities
Postcodes Covered
62 postcodes
84 postcodes