UK Water Quality Report • 2026 Data

Water Hardness in SA15

Water supply analysis across 6 postcode sectors in SA15 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode SA15

For residents and businesses in outcode SA15, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that SA15 averages 40 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in SA15. The lowest mineral concentration is recorded in sector SA15 1 at 40 PPM, whereas sector SA15 9 experiences higher mineral levels reaching 40 PPM.

Since SA15 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 SA15

Lowest mineral concentration

Softest
Sector SA15 1231 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in SA15

Highest mineral concentration

Highest Hardness
Sector SA15 916 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in SA15

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