UK Water Quality Report • 2026 Data

Water Hardness in CH42

Water supply analysis across 10 postcode sectors in CH42 (United Utilities).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode CH42

For residents and businesses in outcode CH42, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that CH42 averages 45 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in CH42. The lowest mineral concentration is recorded in sector CH42 0 at 45 PPM, whereas sector CH42 9 experiences higher mineral levels reaching 45 PPM.

Since CH42 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 CH42

Lowest mineral concentration

Softest
Sector CH42 072 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in CH42

Highest mineral concentration

Highest Hardness
Sector CH42 986 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in CH42

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