Official Supplier Data: Wessex Water • DWI & BS 7593 Standards
Water Hardness in TA9
Official water quality verdict for outcode TA9: classified as Hard Water (277.5 PPM), supplied and treated by Wessex Water across 2 sectors.
Rating: Hard Water277.5 PPM • 19.4° ClarkSupplier: Wessex Water+39% above UK average
Outcode Mean Hardness277.5 PPM19.4° Clark • Hard Water27.8°fH • 15.5°dH
Outcode TA9 Household Water Quality Verdict & Practical Advice
Domestic tap water in outcode TA9 is officially classified as hard water, averaging 277.5 PPM (mg/L CaCO₃) or 19.4° Clark, supplied and treated by Wessex Water across all 2 postcode sectors (468 postcodes). Readings range from 265 PPM (TA9 4) to 290 PPM (TA9 3), showing a local disparity of 25 PPM.
☕ Kettle & Tea Quality:
Rapid limescale buildup in kettles with floating scum on your cuppa. Descale monthly using white vinegar or food-grade citric acid.
🚿 Skin & Bathing:
High calcium levels can aggravate dry skin & eczema sensitivity. Soap lathers less easily, often leaving a tight feeling after hot showers.
🍽️ Appliances & Salt:
Keep water softener salt topped up and calibrate dishwashers to H04 – H05. Protect combi boiler heat exchangers under BS 7593.
Local Installer Quote Network
Living in a Hard Water Zone (TA9 averages 277.5 PPM)? Compare Approved Local Installers
Get up to 3 free, no-obligation quotes from WRAS-approved water softener installers and heating engineers serving Wessex Water.
Verified Against British Standard BS 7593
WRAS-Approved Water Softeners
100% Free & No Obligation Quotes
vs. UK Benchmark+39% Hardervs 200 PPM national average
Water hardness isn't identical across every street in TA9—there is a 25 PPM variance between neighborhoods. Residents in sector TA9 4 enjoy the softest water at 265 PPM, whereas taps in sector TA9 3 register the highest mineral load at 290 PPM. This localized disparity occurs because Wessex Water blends supplies from different boreholes, rivers, and storage reservoirs depending on elevation and seasonal demand.
Supplies across TA9 are managed by Wessex Water through a balanced mix of lowland river abstraction and regional storage reservoirs. Water hardness fluctuates moderately between wet winter periods and dry summer months, averaging 277.5 PPM across all 468 local postcodes under strict Drinking Water Inspectorate (DWI) compliance.
Estimated Annual Household Financial Impact
Limescale & Appliance Operating Costs in Outcode TA9
Based on 277.5 PPM mineral saturation (Hard Water), operating heating appliances across TA9's 468 households carries distinct annual economic consequences:
Extra Combi Boiler Gas Cost£130 – £190
Thermal heating transfer resistance caused by 1mm–1.5mm calcium carbonate build-up on heat exchangers.
Dishwasher Salt Requirement10 – 14 kg
Essential ion-exchange resin bed regeneration salt required to avoid glass clouding and element burnout.
Q: What is the average water hardness in outcode TA9?
Tap water across outcode TA9 averages 277.5 PPM (mg/L), which equals 19.4° Clark, 27.8°fH, or 15.5°dH. It is officially classified as hard water water supplied by Wessex Water.
Q: Is water in TA9 harder than the UK national average?
The UK baseline average is approximately 200 PPM. At 277.5 PPM, water in outcode TA9 is 39% harder than the national benchmark.
Q: What dishwasher salt setting is recommended for TA9?
For Bosch, Siemens, and Neff dishwashers in outcode TA9 (277.5 PPM), the recommended softener setting is H04 – H05.
Q: Who manages the municipal water supply in outcode TA9?
Public tap water infrastructure across all 2 sectors in outcode TA9 is distributed and monitored by Wessex Water.
All Postcode Sectors in TA9
Select a postcode sector below to view exact water softener salt settings, limescale protection guides, and appliance recommendations.