UK Water Quality Report • 2026 Data

Water Hardness in M3

Water supply analysis across 7 postcode sectors in M3 (United Utilities).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode M3

Looking for water hardness metrics in M3? Water supplied by United Utilities in this outcode registers a baseline average of 45 PPM across 7 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in M3. The lowest mineral concentration is recorded in sector M3 1 at 45 PPM, whereas sector M3 7 experiences higher mineral levels reaching 45 PPM.

Since M3 enjoys soft water (45 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 M3

Lowest mineral concentration

Softest
Sector M3 183 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in M3

Highest mineral concentration

Highest Hardness
Sector M3 7135 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in M3

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