Official Supplier Data: Severn Trent Water • DWI & BS 7593 Standards
Water Hardness in B78
Official water quality verdict for outcode B78: classified as Hard Water (206.7 PPM), supplied and treated by Severn Trent Water across 3 sectors.
Rating: Hard Water206.7 PPM • 14.5° ClarkSupplier: Severn Trent Water+3% above UK average
Outcode Mean Hardness206.7 PPM14.5° Clark • Hard Water20.7°fH • 11.6°dH
Outcode B78 Household Water Quality Verdict & Practical Advice
Domestic tap water in outcode B78 is officially classified as hard water, averaging 206.7 PPM (mg/L CaCO₃) or 14.5° Clark, supplied and treated by Severn Trent Water across all 3 postcode sectors (649 postcodes). Readings range from 160 PPM (B78 1) to 300 PPM (B78 3), showing a local disparity of 140 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
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vs. UK Benchmark+3% Hardervs 200 PPM national average
Water hardness isn't identical across every street in B78—there is a 140 PPM variance between neighborhoods. Residents in sector B78 1 enjoy the softest water at 160 PPM, whereas taps in sector B78 3 register the highest mineral load at 300 PPM. This localized disparity occurs because Severn Trent Water blends supplies from different boreholes, rivers, and storage reservoirs depending on elevation and seasonal demand.
Supplies across B78 are managed by Severn Trent 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 206.7 PPM across all 649 local postcodes under strict Drinking Water Inspectorate (DWI) compliance.
Estimated Annual Household Financial Impact
Limescale & Appliance Operating Costs in Outcode B78
Based on 206.7 PPM mineral saturation (Hard Water), operating heating appliances across B78's 649 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 B78?
Tap water across outcode B78 averages 206.7 PPM (mg/L), which equals 14.5° Clark, 20.7°fH, or 11.6°dH. It is officially classified as hard water water supplied by Severn Trent Water.
Q: Is water in B78 harder than the UK national average?
The UK baseline average is approximately 200 PPM. At 206.7 PPM, water in outcode B78 is 3% harder than the national benchmark.
Q: What dishwasher salt setting is recommended for B78?
For Bosch, Siemens, and Neff dishwashers in outcode B78 (206.7 PPM), the recommended softener setting is H04 – H05.
Q: Who manages the municipal water supply in outcode B78?
Public tap water infrastructure across all 3 sectors in outcode B78 is distributed and monitored by Severn Trent Water.
All Postcode Sectors in B78
Select a postcode sector below to view exact water softener salt settings, limescale protection guides, and appliance recommendations.