UK Water Quality Report • 2026 Data

Water Hardness in PL25

Water supply analysis across 4 postcode sectors in PL25 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode PL25

For residents and businesses in outcode PL25, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that PL25 averages 40 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in PL25. The lowest mineral concentration is recorded in sector PL25 3 at 40 PPM, whereas sector PL25 9 experiences higher mineral levels reaching 40 PPM.

Since PL25 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 PL25

Lowest mineral concentration

Softest
Sector PL25 3288 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in PL25

Highest mineral concentration

Highest Hardness
Sector PL25 934 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in PL25

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