UK Water Quality Report • 2026 Data

Water Hardness in TQ5

Water supply analysis across 4 postcode sectors in TQ5 (South West Water).

Outcode Avg Hardness40 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode TQ5

Looking for water hardness metrics in TQ5? Water supplied by South West Water in this outcode registers a baseline average of 40 PPM across 4 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in TQ5. The lowest mineral concentration is recorded in sector TQ5 0 at 40 PPM, whereas sector TQ5 9 experiences higher mineral levels reaching 40 PPM.

Since TQ5 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 TQ5

Lowest mineral concentration

Softest
Sector TQ5 0178 Postcodes • Soft
40 PPM2.8 °Clark

Hardest Sector in TQ5

Highest mineral concentration

Highest Hardness
Sector TQ5 9286 Postcodes • Soft
40 PPM2.8 °Clark

All Postcode Sectors in TQ5

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