UK Water Quality Report • 2026 Data

Water Hardness in CF46

Water supply analysis across 2 postcode sectors in CF46 (Dŵr Cymru Welsh Water).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode CF46

Analyzing water quality disclosures across all 2 postcode sectors in outcode CF46 reveals an average water hardness of 45 PPM (Soft Water). Public water supply across this area is managed by Dŵr Cymru Welsh Water, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in CF46. The lowest mineral concentration is recorded in sector CF46 5 at 45 PPM, whereas sector CF46 6 experiences higher mineral levels reaching 45 PPM.

Since CF46 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 CF46

Lowest mineral concentration

Softest
Sector CF46 5150 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in CF46

Highest mineral concentration

Highest Hardness
Sector CF46 6198 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in CF46

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