UK Water Quality Report • 2026 Data

Water Hardness in WD24

Water supply analysis across 4 postcode sectors in WD24 (Affinity Water).

Outcode Avg Hardness290 PPMHard Water
Regional Quality Overview

Water Supply Analysis: Outcode WD24

Looking for water hardness metrics in WD24? Water supplied by Affinity Water in this outcode registers a baseline average of 290 PPM across 4 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in WD24. The lowest mineral concentration is recorded in sector WD24 4 at 290 PPM, whereas sector WD24 7 experiences higher mineral levels reaching 290 PPM.

Due to the hard water (290 PPM) in WD24, limescale build-up can occur on heating elements, shower heads, and boilers. Setting your dishwasher water softener to the correct level (e.g. Bosch setting H04) is strongly recommended to prevent cloudy glassware and internal scale accumulation. Review the individual postcode sectors below to get precise dishwasher salt settings and limescale recommendations.

Softest Sector in WD24

Lowest mineral concentration

Softest
Sector WD24 4131 Postcodes • Hard
290 PPM20.3 °Clark

Hardest Sector in WD24

Highest mineral concentration

Highest Hardness
Sector WD24 7127 Postcodes • Hard
290 PPM20.3 °Clark

All Postcode Sectors in WD24

Select a postcode sector below to view exact water softener salt settings, limescale protection guides, and appliance recommendations.