UK Water Quality Report • 2026 Data

Water Hardness in PL12

Water supply analysis across 4 postcode sectors in PL12 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode PL12

Analyzing water quality disclosures across all 4 postcode sectors in outcode PL12 reveals an average water hardness of 40 PPM (Soft Water). Public water supply across this area is managed by South West Water, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in PL12. The lowest mineral concentration is recorded in sector PL12 4 at 40 PPM, whereas sector PL12 9 experiences higher mineral levels reaching 40 PPM.

Since PL12 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 PL12

Lowest mineral concentration

Softest
Sector PL12 4283 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in PL12

Highest mineral concentration

Highest Hardness
Sector PL12 95 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in PL12

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