Hythe Water Hardness & Quality Report (2026)
Water Hardness
~200–300 mg/L
Hardestimated · not lab-verified
Source
mixed
pH Level
8.1
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
362.6 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 Hythe, your appliances are currently losing 33% efficiency due to mineral buildup.
| Appliance | In Hythe | 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 Hythe compares to its nearest neighbours
| City | Hardness | Clark° | Risk | Source |
|---|---|---|---|---|
| ▶ Hythe, South East | ≈ 200–300 mg/L | 17.5° | 🟠 Hard | mixed |
| Woolston, South East | ≈ 150–200 mg/L | 20.4° | 🟡 Moderately Hard | mixed |
| Southampton, South East | ≈ 200–300 mg/L | 18.8° | 🟠 Hard | groundwater |
| Portswood, South East | ≈ 200–300 mg/L | 20.2° | 🟠 Hard | mixed |
| Totton, South East | ≈ 200–300 mg/L | 18° | 🟠 Hard | mixed |
National Benchmark
How Hythe compares to the United Kingdom average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Hythe | ≈ 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 Hythe's Water Unique?
Local geology and source profile
Hythe, situated in England's South East, receives its water from a combination of sources managed by Southern Water and other regional providers. While specific treatment plants and reservoir names serving the town weren't publicly detailed, the region typically draws from both surface water bodies and underground aquifers. This mixed supply strategy is common across the South East, where cities like Southampton, Portsmouth, and Brighton also contend with hard water.
The region's water quality is significantly influenced by its underlying geology, primarily composed of chalk and sandstone formations. As water journeys through these mineral-rich layers, it naturally dissolves minerals like calcium and magnesium. This geological interaction, particularly with groundwater sources and underground aquifers, is the direct cause of the characteristically hard water found throughout the South East.
Residents in hard water areas like Hythe often notice the effects on their plumbing and appliances, with limescale buildup being a common issue on taps, heating elements, and inside pipes. Kettles and boilers are particularly susceptible to scale formation, which can impact their efficiency and lifespan. Simple cleaning methods using vinegar or bicarbonate of soda can help manage some scale. For a more comprehensive solution, homeowners might consider installing a water filter or a whole-house water softener to mitigate these effects. For precise details on your home's water quality, contacting Southern Water directly or checking their online portal is recommended.
Geology & Source: Chalk and sandstone formations; these permeable rocks allow water to dissolve calcium and magnesium, creating a hard water supply.
Other South East Water Reports
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