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Hythe Water Hardness & Quality Report (2026)

Water Hardness

hard

~200–300 mg/L

Hard

estimated · 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

hard~200–300 mg/LHard · est.

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.

ApplianceIn HytheSoft Water CityEfficiency 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

CityHardnessClark°RiskSource
Hythe, South East≈ 200–300 mg/L17.5°🟠 Hardmixed
Woolston, South East≈ 150–200 mg/L20.4°🟡 Moderately Hardmixed
Southampton, South East≈ 200–300 mg/L18.8°🟠 Hardgroundwater
Portswood, South East≈ 200–300 mg/L20.2°🟠 Hardmixed
Totton, South East≈ 200–300 mg/L18°🟠 Hardmixed

National Benchmark

How Hythe compares to the United Kingdom average

BenchmarkHardnessAppliance Risk
Hythe≈ 200–300 mg/L🟠 High
United Kingdom National Avg177 mg/L🟡 Moderate
Skipton Top Rated7.1 mg/L🟢 None

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What Makes Hythe's Water Unique?

Local geology and source profile

Source: MixedTDS: 362.6 mg/LpH: 8.1

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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Frequently Asked Questions

Is Hythe's water safe to drink?
Yes. Hythe's water meets all DWI drinking water standards. The hardness is ≈ 200–300 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.
Do I need a water softener in Hythe?
At ≈ 200–300 mg/L (Hard), Hythe's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 33%.
How does Hythe compare to the United Kingdom average?
The United Kingdom national average is 177 mg/L. Hythe (≈ 200–300 mg/L) is 73 mg/L above the national average. The softest major city is Skipton at just 7.1 mg/L.