UK Water Quality Report • 2026 Data

Water Hardness in HR3

Water supply analysis across 2 postcode sectors in HR3 (Severn Trent / Hafren Dyfrdwy).

Outcode Avg Hardness150 PPMModerately Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode HR3

For residents and businesses in outcode HR3, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that HR3 averages 150 PPM in mineral content, falling into the Moderately Hard Water classification.

Water chemistry can fluctuate across supply zones in HR3. The lowest mineral concentration is recorded in sector HR3 5 at 150 PPM, whereas sector HR3 6 experiences higher mineral levels reaching 150 PPM.

Due to the moderately hard water (150 PPM) in HR3, 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 H02) 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 HR3

Lowest mineral concentration

Softest
Sector HR3 5248 Postcodes • Moderately Hard
150 PPM10.5 °Clark

Hardest Sector in HR3

Highest mineral concentration

Highest Hardness
Sector HR3 6187 Postcodes • Moderately Hard
150 PPM10.5 °Clark

All Postcode Sectors in HR3

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