UK Water Quality Report • 2026 Data

Water Hardness in IM99

Water supply analysis across 8 postcode sectors in IM99 (Manx Utilities).

Outcode Avg Hardness30 PPMSoft Water
Regional Quality Overview

Water Supply Analysis: Outcode IM99

Analyzing water quality disclosures across all 8 postcode sectors in outcode IM99 reveals an average water hardness of 30 PPM (Soft Water). Public water supply across this area is managed by Manx Utilities, responsible for treating and delivering water to residential households.

Water chemistry can fluctuate across supply zones in IM99. The lowest mineral concentration is recorded in sector IM99 1 at 30 PPM, whereas sector IM99 9 experiences higher mineral levels reaching 30 PPM.

Since IM99 enjoys soft water (30 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 IM99

Lowest mineral concentration

Softest
Sector IM99 178 Postcodes • Soft
30 PPM2.1 °Clark

Hardest Sector in IM99

Highest mineral concentration

Highest Hardness
Sector IM99 92 Postcodes • Soft
30 PPM2.1 °Clark

All Postcode Sectors in IM99

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