Official Supplier Data: Dŵr Cymru Welsh Water • DWI & BS 7593 Standards
Water Hardness in LL74
Official water quality verdict for outcode LL74: classified as Soft Water (45 PPM), supplied and treated by Dŵr Cymru Welsh Water across 1 sectors.
Rating: Soft Water45 PPM • 3.2° ClarkSupplier: Dŵr Cymru Welsh Water-77% below UK average
Outcode Mean Hardness45 PPM3.2° Clark • Soft Water4.5°fH • 2.5°dH
Outcode LL74 Household Water Quality Verdict & Practical Advice
Domestic tap water in outcode LL74 is officially classified as soft water, averaging 45 PPM (mg/L CaCO₃) or 3.2° Clark, supplied and treated by Dŵr Cymru Welsh Water across all 1 postcode sectors (80 postcodes). Readings range from 45 PPM (LL74 8) to 45 PPM (LL74 8) with consistent mineral levels throughout.
☕ Kettle & Tea Quality:
Naturally soft water leaves kettles clear of mineral furring. Your tea brews bright and clean with zero tea scum.
🚿 Skin & Bathing:
Gentle on sensitive skin and eczema-prone households. Soaps lather richly with small amounts of product.
🍽️ Appliances & Salt:
Dishwasher salt top-up is optional or minimal (setting H00 (No salt required)). Boilers operate at peak thermal efficiency without scale.
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vs. UK Benchmark-77% Softervs 200 PPM national average
Statistical distribution across all 1 postcode sectors and 80 delivery points under Dŵr Cymru Welsh Water's catchment monitoring:
Analyzed Sectors180 postcodes
PPM Spread (Min - Max)45 – 45Variance: 0 PPM
Predominant ZoneSoft Water0% hard/very hard
Regulating AuthorityDŵr Cymru Welsh WaterDWI Regulated Supply
Hydro Metric
Outcode LL74 Level
UK National Reference
Regional Status
Mean Mineral Density
45 PPM (3.2 °Clark)
200 PPM (14.0 °Clark)
-77% below baseline
French & German Scale
4.5 °fH / 2.5 °dH
20.0 °fH / 11.2 °dH
European standard conversion
Catchment Uniformity
Uniform (Single primary source)
Regional blending standard
Single Water Zone
Dishwasher Salt Calibration
H00 (No salt required)
Bosch H03 / Beko Level 2
Salt optional
Regional Hydro-Geological Overview
Water Hardness Breakdown: Outcode LL74
Serving 80 homes and businesses across outcode LL74, mains tap water supplied by Dŵr Cymru Welsh Water registers an average mineral density of 45 PPM (4.5°fH / 2.5°dH). Rated as soft water, local water hardness determines how well laundry detergents lather, the rate of scale accumulation in combi boilers, and whether sensitive skin or eczema flares up after showers.
Water hardness is remarkably consistent across all 1 sectors of LL74, with readings holding steady at 45 PPM from LL74 8 through to LL74 8. This uniform profile means every household on the Dŵr Cymru Welsh Water network in this zone shares the same appliance settings and kettle descaling routine.
Tap water supplied to LL74 by Dŵr Cymru Welsh Water originates predominantly from upland surface reservoirs and catchments surrounded by hard, impermeable granite or sandstone geology. Because rainwater runs off dense bedrock without dissolving heavy calcium deposits, it arrives at local taps naturally soft at 45 PPM, keeping plumbing networks clear without requiring water softeners.
Households across LL74's 1 sectors enjoy extended appliance lifespans. Because water contains just 45 PPM of dissolved minerals, kettles remain clean without periodic acid descaling, and sensitive skin or eczema is far less prone to irritation caused by calcium mineral deposits.
Estimated Annual Household Financial Impact
Limescale & Appliance Operating Costs in Outcode LL74
Based on 45 PPM mineral saturation (Soft Water), operating heating appliances across LL74's 80 households carries distinct annual economic consequences:
Extra Combi Boiler Gas Cost£0 (Optimal heat transfer)
Tap water throughout outcode LL74 is supplied from a unified distribution network managed by Dŵr Cymru Welsh Water. With sector LL74 8 presenting an identical mineral concentration of 45 PPM, households across all 80 postcodes share uniform limescale risk profiles and identical appliance salt calibrations (H00 (No salt required)).
Frequently Asked Questions: Water in Outcode LL74
Q: What is the average water hardness in outcode LL74?
Tap water across outcode LL74 averages 45 PPM (mg/L), which equals 3.2° Clark, 4.5°fH, or 2.5°dH. It is officially classified as soft water water supplied by Dŵr Cymru Welsh Water.
Q: Is water in LL74 harder than the UK national average?
The UK baseline average is approximately 200 PPM. At 45 PPM, water in outcode LL74 is 77% softer than the national benchmark.
Q: What dishwasher salt setting is recommended for LL74?
For Bosch, Siemens, and Neff dishwashers in outcode LL74 (45 PPM), the recommended softener setting is H00 (No salt required).
Q: Who manages the municipal water supply in outcode LL74?
Public tap water infrastructure across all 1 sectors in outcode LL74 is distributed and monitored by Dŵr Cymru Welsh Water.
All Postcode Sectors in LL74
Select a postcode sector below to view exact water softener salt settings, limescale protection guides, and appliance recommendations.