UK Water Quality Report • 2026 Data

Water Hardness in WN4

Water supply analysis across 3 postcode sectors in WN4 (United Utilities).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode WN4

For residents and businesses in outcode WN4, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that WN4 averages 45 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in WN4. The lowest mineral concentration is recorded in sector WN4 0 at 45 PPM, whereas sector WN4 9 experiences higher mineral levels reaching 45 PPM.

Since WN4 enjoys soft water (45 PPM), residents generally do not need dishwasher salt or heavy-duty limescale descalers. Standard detergent dosages are sufficient for laundry and dishwashing. Review the individual postcode sectors below to get precise dishwasher salt settings and limescale recommendations.

Softest Sector in WN4

Lowest mineral concentration

Softest
Sector WN4 0193 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in WN4

Highest mineral concentration

Highest Hardness
Sector WN4 9231 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in WN4

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