UK Water Quality Report • 2026 Data

Water Hardness in KA18

Water supply analysis across 5 postcode sectors in KA18 (Scottish Water).

Outcode Avg Hardness25 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode KA18

Looking for water hardness metrics in KA18? Water supplied by Scottish Water in this outcode registers a baseline average of 25 PPM across 5 distinct postcode sectors.

Water chemistry can fluctuate across supply zones in KA18. The lowest mineral concentration is recorded in sector KA18 1 at 25 PPM, whereas sector KA18 9 experiences higher mineral levels reaching 25 PPM.

Since KA18 enjoys soft water (25 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 KA18

Lowest mineral concentration

Softest
Sector KA18 1218 Postcodes • Soft
25 PPM1.8 °Clark

Hardest Sector in KA18

Highest mineral concentration

Highest Hardness
Sector KA18 91 Postcodes • Soft
25 PPM1.8 °Clark

All Postcode Sectors in KA18

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