UK Water Quality Report • 2026 Data

Water Hardness in TQ9

Water supply analysis across 4 postcode sectors in TQ9 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode TQ9

Analyzing water quality disclosures across all 4 postcode sectors in outcode TQ9 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 TQ9. The lowest mineral concentration is recorded in sector TQ9 5 at 40 PPM, whereas sector TQ9 9 experiences higher mineral levels reaching 40 PPM.

Since TQ9 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 TQ9

Lowest mineral concentration

Softest
Sector TQ9 5324 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in TQ9

Highest mineral concentration

Highest Hardness
Sector TQ9 943 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in TQ9

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