UK Water Quality Report • 2026 Data

Water Hardness in PL11

Water supply analysis across 2 postcode sectors in PL11 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode PL11

Looking for water hardness metrics in PL11? Water supplied by South West Water in this outcode registers a baseline average of 40 PPM across 2 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in PL11. The lowest mineral concentration is recorded in sector PL11 2 at 40 PPM, whereas sector PL11 3 experiences higher mineral levels reaching 40 PPM.

Since PL11 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 PL11

Lowest mineral concentration

Softest
Sector PL11 2193 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in PL11

Highest mineral concentration

Highest Hardness
Sector PL11 3132 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in PL11

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