UK Water Quality Report • 2026 Data

Water Hardness in DY4

Water supply analysis across 5 postcode sectors in DY4 (South Staffordshire Water).

Outcode Avg Hardness300 PPMVery Hard Water
Regional Quality Overview

Water Supply Analysis: Outcode DY4

Looking for water hardness metrics in DY4? Water supplied by South Staffordshire Water in this outcode registers a baseline average of 300 PPM across 5 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in DY4. The lowest mineral concentration is recorded in sector DY4 0 at 300 PPM, whereas sector DY4 9 experiences higher mineral levels reaching 300 PPM.

Due to the very hard water (300 PPM) in DY4, 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 DY4

Lowest mineral concentration

Softest
Sector DY4 0282 Postcodes • Very Hard
300 PPM21 °Clark

Hardest Sector in DY4

Highest mineral concentration

Highest Hardness
Sector DY4 9202 Postcodes • Very Hard
300 PPM21 °Clark

All Postcode Sectors in DY4

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