UK Water Quality Report • 2026 Data

Water Hardness in AL4

Water supply analysis across 3 postcode sectors in AL4 (Affinity Water).

Outcode Avg Hardness290 PPMHard Water
Regional Quality Overview

Water Supply Analysis: Outcode AL4

For residents and businesses in outcode AL4, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that AL4 averages 290 PPM in mineral content, falling into the Hard Water classification.

Water chemistry can fluctuate across supply zones in AL4. The lowest mineral concentration is recorded in sector AL4 0 at 290 PPM, whereas sector AL4 9 experiences higher mineral levels reaching 290 PPM.

Due to the hard water (290 PPM) in AL4, 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 AL4

Lowest mineral concentration

Softest
Sector AL4 0290 Postcodes • Hard
290 PPM20.3 °Clark

Hardest Sector in AL4

Highest mineral concentration

Highest Hardness
Sector AL4 9287 Postcodes • Hard
290 PPM20.3 °Clark

All Postcode Sectors in AL4

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