West Molesey Water Hardness & Quality Report (2026)
Water Hardness
301+ mg/L
Very Hardestimated · not lab-verified
Source
mixed
pH Level
8.6
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
730.9 mg/L
Est. Daily Cost
£0.85
energy & soap waste
Source: DWI Data Portal · Updated 2026
0–99
mg/L
Soft
100–149
mg/L
Slightly Hard
150–199
mg/L
Moderately Hard
200–300
mg/L
Hard
300+
mg/L
Very Hard
Appliance Damage Report
In West Molesey, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In West Molesey | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.7 yrs | 8.5 yrs | -45% |
| Washing Machine | 6.6 yrs | 12 yrs | -45% |
| Water Heater | 8.3 yrs | 15 yrs | -45% |
Regional Water Comparison
How West Molesey compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ West Molesey, South East | ≈ 301+ mg/L | 28.1° | 🔴 Very Hard | mixed |
| Hampton, Greater London | ≈ 200–300 mg/L | 15.9° | 🟠 Hard | mixed |
| East Molesey, South East | ≈ 200–300 mg/L | 16.9° | 🟠 Hard | mixed |
| Esher, South East | ≈ 200–300 mg/L | 15.1° | 🟠 Hard | mixed |
| Hanworth, Greater London | ≈ 300+ mg/L | 15.6° | 🔴 Very Hard | mixed |
National Benchmark
How West Molesey compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ West Molesey | ≈ 301+ mg/L | 🔴 Very High |
| United Kingdom National Avg | 177 mg/L | 🟡 Moderate |
| Skipton Top Rated | 7.1 mg/L | 🟢 None |
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What Makes West Molesey's Water Unique?
Local geology and source profile
Very hard water in this area often results in considerable limescale buildup within appliances like kettles, boilers, and washing machines, as well as showerheads. This accumulation not only diminishes efficiency but also shortens the lifespan of these fixtures. Dishwashers and hot water systems are particularly susceptible to scale, which insulates heating elements and impedes water flow. Homeowners can address this by regularly descaling with solutions like vinegar or citric acid and by fitting limescale filters onto taps. Given the classification of the water as very hard, installing a whole-house water softener is highly recommended to prevent fixture staining, reduce soap scum, and protect appliances from damage.
Geology & Source: Chalk Group aquifer; porous Cretaceous limestone formations like the Newhaven Chalk and Zig Zag Chalk are rich in calcium carbonate, leading to very hard water.
Other South East Water Reports
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