West Midlands · West Midlands

Is Walsall water hard or soft?

Moderately Hard at 179 ppm · 15 postcode districts

  • Supplier Severn Trent Water
  • County West Midlands
  • Postcodes 15
Area average
179
ppm CaCO₃
Moderately Hard
Soft
Moderate
Hard
Very hard
0100200300400+

Walsall water hardness at a glance

  1. Walsall water is moderately hard, averaging 179 ppm across 15 postcode districts.
  2. That is 28 ppm below the UK average of 207 ppm.
  3. The hardest district is WS9 at 198 ppm; the softest is WS10 at 155 ppm.
  4. The supplier is Severn Trent Water.
  5. Limescale builds slowly at this level, so a softener is not usually needed.

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The average water hardness in Walsall is 179 ppm, classified as moderately hard. Walsall is served by Severn Trent Water, covering 15 postcode districts across West Midlands in the West Midlands region.

Hardness varies across the area. See the table below for a breakdown by postcode district. WS9 has the hardest water at 198 ppm, while WS10 is the softest at 155 ppm.

By postcode

Water Hardness by Postcode in Walsall

Sorted by hardness. Tap a postcode for full details.

Postcode Water Company Hardness PPM Level
WS9 Severn Trent Water
198
198 ppm Hard
WS8 Severn Trent Water
197
197 ppm Hard
WS7 Severn Trent Water
196
196 ppm Hard
WS6 Severn Trent Water
195
195 ppm Hard
WS5 Severn Trent Water
194
194 ppm Hard
WS4 Severn Trent Water
193
193 ppm Hard
WS3 Severn Trent Water
192
192 ppm Hard
WS2 Severn Trent Water
191
191 ppm Hard
WS1 Severn Trent Water
190
190 ppm Hard
WS15 Severn Trent Water
160
160 ppm Moderately Hard
WS14 Severn Trent Water
159
159 ppm Moderately Hard
WS13 Severn Trent Water
158
158 ppm Moderately Hard
WS12 Severn Trent Water
157
157 ppm Moderately Hard
WS11 Severn Trent Water
156
156 ppm Moderately Hard
WS10 Severn Trent Water
155
155 ppm Moderately Hard
Suppliers

Water Companies Serving Walsall

Tap for full coverage area and hardness data.

Severn Trent Water

222 ppm Hard

Each water company publishes its own hardness data, so you can cross-check the Walsall figures here against the published hardness data from Severn Trent Water.

Water Hardness Guides

Learn more about water hardness and how to manage it.

What Is Water Hardness? Effects Solutions Water Softeners Limescale Removal

Test Your Water in Walsall

At 179 ppm, your water is moderately hard. A home testing kit lets you verify the exact hardness and check for other contaminants.

TESPERT 16-in-1 Water Testing Kit

Home water test strips that check hardness, pH, chlorine, lead, and 12 other parameters. Results in around 60 seconds. 125 strips per pack.

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FAQ

Common questions about Walsall water

Is Walsall water hard or soft?
Walsall is classified as moderately hard, averaging 179 ppm across 15 postcode districts. Limescale build-up is minimal at this level, though individual postcodes vary.
Which postcode in Walsall has the hardest water?
WS9 has the hardest water in Walsall at 198 ppm, while WS10 is the softest at 155 ppm. See the full table above for every district.
Which water company supplies Walsall?
Walsall is supplied by Severn Trent Water, covering 15 postcode districts across West Midlands.
Is tap water in Walsall safe to drink?
Hardness is not a safety issue: the World Health Organization sets no health-based limit for water hardness, so hard and soft water are both fine to drink. Drinking water quality is regulated by the Drinking Water Inspectorate in England and Wales and the Drinking Water Quality Regulator in Scotland, and your water company publishes test results for your area.
Does Walsall have any harder-water postcodes?
WS9 is the hardest district at 198 ppm (hard), though most of Walsall averages 179 ppm.
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