Sheerness Water Hardness & Quality Report (2026)
Water Hardness
~200–300 mg/L
Hardestimated · not lab-verified
Source
mixed
pH Level
8
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
364 mg/L
Est. Daily Cost
£0.57
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 Sheerness, your appliances are currently losing 33% efficiency due to mineral buildup.
| Appliance | In Sheerness | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5.7 yrs | 8.5 yrs | -33% |
| Washing Machine | 8 yrs | 12 yrs | -33% |
| Water Heater | 10 yrs | 15 yrs | -33% |
Regional Water Comparison
How Sheerness compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Sheerness, South East | ≈ 200–300 mg/L | 17.5° | 🟠 Hard | mixed |
| Sittingbourne, South East | ≈ 300+ mg/L | 20.6° | 🔴 Very Hard | mixed |
| Southend-on-Sea, East of England | ≈ 300+ mg/L | 18.7° | 🔴 Very Hard | mixed |
| Rochford, East of England | ≈ 300+ mg/L | 15.7° | 🔴 Very Hard | mixed |
| Faversham, South East | ≈ 200–300 mg/L | 16.8° | 🟠 Hard | mixed |
National Benchmark
How Sheerness compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Sheerness | ≈ 200–300 mg/L | 🟠 High |
| United Kingdom National Avg | 177 mg/L | 🟡 Moderate |
| Skipton Top Rated | 7.1 mg/L | 🟢 None |
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What Makes Sheerness's Water Unique?
Local geology and source profile
South East Water supplies drinking water to homes in Sheerness, on the Isle of Sheppey in Kent. While the exact sources like reservoirs or rivers for this specific area weren't detailed, the water is treated at the Burrows Lane Water Treatment Works. South East Water serves a wide region across southeast England, including Kent, Sussex, Surrey, Hampshire, and Berkshire. They provide customer support for any supply issues via phone, with specific numbers for business hours and 24/7 emergencies.
Geological information specific to the Sheerness water supply's watershed and rock formations was not readily available. However, the water originates from the North Downs Chalk. This chalk bedrock is known to be the reason for the extremely hard water experienced in the area. The Isle of Sheppey infrastructure plays a role in delivering this water to residents.
Expect extremely hard water in Sheerness. This can lead to scale buildup in appliances like kettles, water heaters, and dishwashers, potentially shortening their lifespan. You might notice reduced lathering from soaps and detergents. Regularly descaling appliances is a good practice. If you're experiencing significant issues with scale, a water softener could be a worthwhile investment for your home's plumbing and fixtures.
Geology & Source: North Downs Chalk; chalk bedrock produces extremely hard water
Other South East Water Reports
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