UK Water Quality Report • 2026 Data

Water Hardness in CH27

Water supply analysis across 1 postcode sectors in CH27 (United Utilities).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode CH27

For residents and businesses in outcode CH27, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that CH27 averages 45 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in CH27. The lowest mineral concentration is recorded in sector CH27 9 at 45 PPM, whereas sector CH27 9 experiences higher mineral levels reaching 45 PPM.

Since CH27 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 CH27

Lowest mineral concentration

Softest
Sector CH27 921 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in CH27

Highest mineral concentration

Highest Hardness
Sector CH27 921 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in CH27

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