Water Hardness Breakdown for Sector JE1 2
Water testing audits for postcode sector JE1 2 confirm a mean calcium carbonate concentration of 160 PPM, equivalent to 11.2° Clark or 16.0°fH. Sourced and treated by Jersey Water across 11 postcode delivery routes, water in this catchment is categorized as slightly hard.
With a balanced reading of 160 PPM (11.2° Clark), water in JE1 2 exhibits a moderate mineral structure. While limescale accumulation is gradual, minor scale rings can form inside kettles and on boiler heat exchangers over 6–12 month periods (estimated thermal efficiency drag of 4% – 7%).
The water supply managed by Jersey Water in this region is primarily abstracted from upland reservoirs, lakes, and moorland catchments with impermeable granite or sandstone geology. This geological pathway limits mineral leaching, maintaining a low-to-moderate hardness baseline of 160 PPM throughout JE1 2.
Household water chemistry in JE1 2 (11.2° Clark) dictates everyday cleaning efficiency. Water supplied by Jersey Water at this level necessitates medium detergent volume with routine machine descaling, while inline shower head filters can help sensitive skin by mitigating mineral residue during washing.
To preserve internal ion-exchange resin chambers, domestic dishwashers operating in sector JE1 2 should be calibrated precisely for 160 PPM. For Bosch, Neff, and Siemens appliances, the recommended salt dosing index is H02. Explore our interactive configuration tool below to verify exact settings for Beko, Miele, and Whirlpool units.