UK Water Quality Report • 2026 Data

Water Hardness in LL74

Water supply analysis across 1 postcode sectors in LL74 (Dŵr Cymru Welsh Water).

Outcode Avg Hardness45 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode LL74

For residents and businesses in outcode LL74, understanding local water chemistry is essential for appliance longevity and limescale prevention. Our environmental data shows that LL74 averages 45 PPM in mineral content, falling into the Soft Water classification.

Water chemistry can fluctuate across supply zones in LL74. The lowest mineral concentration is recorded in sector LL74 8 at 45 PPM, whereas sector LL74 8 experiences higher mineral levels reaching 45 PPM.

Since LL74 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 LL74

Lowest mineral concentration

Softest
Sector LL74 880 Postcodes • Soft
45 PPM3.2 °Clark

Hardest Sector in LL74

Highest mineral concentration

Highest Hardness
Sector LL74 880 Postcodes • Soft
45 PPM3.2 °Clark

All Postcode Sectors in LL74

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