UK Water Quality Report • 2026 Data

Water Hardness in LU5

Water supply analysis across 4 postcode sectors in LU5 (Affinity Water).

Outcode Avg Hardness295 PPMHard Water
Regional Quality Overview

Water Supply Analysis: Outcode LU5

For residents and businesses in outcode LU5, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that LU5 averages 295 PPM in mineral content, falling into the Hard Water classification.

Water chemistry can fluctuate across supply zones in LU5. The lowest mineral concentration is recorded in sector LU5 4 at 290 PPM, whereas sector LU5 6 experiences higher mineral levels reaching 310 PPM.

Due to the hard water (295 PPM) in LU5, 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 H07 (Max Salt)) 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 LU5

Lowest mineral concentration

Softest
Sector LU5 4227 Postcodes • Hard
290 PPM20.3 °Clark

Hardest Sector in LU5

Highest mineral concentration

Highest Hardness
Sector LU5 6282 Postcodes • Very Hard
310 PPM21.7 °Clark

All Postcode Sectors in LU5

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