Official Supplier Data: Severn Trent Water • DWI & BS 7593 Standards
Water Hardness in CV3
Official water quality verdict for outcode CV3: classified as Moderately Hard Water (160 PPM), supplied and treated by Severn Trent Water across 7 sectors.
Rating: Moderately Hard Water160 PPM • 11.2° ClarkSupplier: Severn Trent Water-20% below UK average
Outcode Mean Hardness160 PPM11.2° Clark • Moderately Hard Water16.0°fH • 9.0°dH
Outcode CV3 Household Water Quality Verdict & Practical Advice
Domestic tap water in outcode CV3 is officially classified as moderately hard water, averaging 160 PPM (mg/L CaCO₃) or 11.2° Clark, supplied and treated by Severn Trent Water across all 7 postcode sectors (1,364 postcodes). Readings range from 160 PPM (CV3 1) to 160 PPM (CV3 9) with consistent mineral levels throughout.
☕ Kettle & Tea Quality:
Gradual chalky ring forms in kettles over 2–3 months. Descale quarterly with citric acid crystals to keep heating elements clean.
🚿 Skin & Bathing:
Moderate mineral content is generally gentle on skin, producing normal lather with everyday soaps and shampoos.
🍽️ Appliances & Salt:
Set dishwashers to H02 – H03 to avoid cloudy glassware, and check boiler inhibitor levels at your annual service.
Local Installer Quote Network
Protect Your Heating & Appliances in CV3 (160 PPM): Compare Local Specialists
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vs. UK Benchmark-20% Softervs 200 PPM national average
If you have recently moved to CV3 or are setting up new kitchen appliances, getting your local water hardness right makes all the difference. Official water testing records from Severn Trent Water show a baseline mineral level of 160 PPM (11.2° Clark) across CV3's 1,364 postcodes. That classifies this postal area as moderately hard water, directly impacting how often you need to top up dishwasher salt and how fast heating elements fur up with scale.
Water hardness is remarkably consistent across all 7 sectors of CV3, with readings holding steady at 160 PPM from CV3 1 through to CV3 9. This uniform profile means every household on the Severn Trent Water network in this zone shares the same appliance settings and kettle descaling routine.
Supplies across CV3 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 160 PPM across all 1,364 local postcodes under strict Drinking Water Inspectorate (DWI) compliance.
Households across CV3's 1,364 postcodes experience manageable mineral levels. While heating efficiency losses remain mild (4% – 7%), routine descaling of steam irons and thermostatic shower cartridges prevents gradual mineral clogging.
Estimated Annual Household Financial Impact
Limescale & Appliance Operating Costs in Outcode CV3
Based on 160 PPM mineral saturation (Moderately Hard Water), operating heating appliances across CV3's 1,364 households carries distinct annual economic consequences:
Tap water throughout outcode CV3 is supplied from a unified distribution network managed by Severn Trent Water. With all 7 sectors presenting an identical mineral concentration of 160 PPM, households across all 1,364 postcodes share uniform limescale risk profiles and identical appliance salt calibrations (H02 – H03).
Frequently Asked Questions: Water in Outcode CV3
Q: What is the average water hardness in outcode CV3?
Tap water across outcode CV3 averages 160 PPM (mg/L), which equals 11.2° Clark, 16.0°fH, or 9.0°dH. It is officially classified as moderately hard water water supplied by Severn Trent Water.
Q: Is water in CV3 harder than the UK national average?
The UK baseline average is approximately 200 PPM. At 160 PPM, water in outcode CV3 is 20% softer than the national benchmark.
Q: What dishwasher salt setting is recommended for CV3?
For Bosch, Siemens, and Neff dishwashers in outcode CV3 (160 PPM), the recommended softener setting is H02 – H03.
Q: Who manages the municipal water supply in outcode CV3?
Public tap water infrastructure across all 7 sectors in outcode CV3 is distributed and monitored by Severn Trent Water.
All Postcode Sectors in CV3
Select a postcode sector below to view exact water softener salt settings, limescale protection guides, and appliance recommendations.