UK Water Quality Report • 2026 Data

Water Hardness in SA42

Water supply analysis across 1 postcode sectors in SA42 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode SA42

For residents and businesses in outcode SA42, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that SA42 averages 40 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in SA42. The lowest mineral concentration is recorded in sector SA42 0 at 40 PPM, whereas sector SA42 0 experiences higher mineral levels reaching 40 PPM.

Since SA42 enjoys soft water (40 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 SA42

Lowest mineral concentration

Softest
Sector SA42 0155 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in SA42

Highest mineral concentration

Highest Hardness
Sector SA42 0155 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in SA42

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