Wiltshire · South West

Is Salisbury water hard or soft?

Hard at 259 ppm · 11 postcode districts

  • Supplier Wessex Water
  • County Wiltshire
  • Postcodes 11
Area average
259
ppm CaCO₃
Hard
Soft
Moderate
Hard
Very hard
0100200300400+

Salisbury water hardness at a glance

  1. Salisbury water is hard, averaging 259 ppm across 11 postcode districts.
  2. That is 52 ppm above the UK average of 207 ppm.
  3. The hardest district is SP9 at 273 ppm; the softest is SP10 at 214 ppm.
  4. The supplier is Wessex Water.
  5. Expect limescale on kettles, taps and showerheads; see the water softener guide for sizing and costs.

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The average water hardness in Salisbury is 259 ppm, classified as hard. Salisbury is served by Wessex Water, covering 11 postcode districts across Wiltshire in the South West region.

Hardness varies across the area. See the table below for a breakdown by postcode district. SP9 has the hardest water at 273 ppm, while SP10 is the softest at 214 ppm.

By postcode

Water Hardness by Postcode in Salisbury

Sorted by hardness. Tap a postcode for full details.

Postcode Water Company Hardness PPM Level
SP9 Wessex Water
273
273 ppm Hard
SP8 Wessex Water
272
272 ppm Hard
SP7 Wessex Water
271
271 ppm Hard
SP6 Wessex Water
270
270 ppm Hard
SP5 Wessex Water
269
269 ppm Hard
SP4 Wessex Water
268
268 ppm Hard
SP3 Wessex Water
267
267 ppm Hard
SP2 Wessex Water
266
266 ppm Hard
SP1 Wessex Water
265
265 ppm Hard
SP11 Wessex Water
215
215 ppm Hard
SP10 Wessex Water
214
214 ppm Hard
Suppliers

Water Companies Serving Salisbury

Tap for full coverage area and hardness data.

Wessex Water

231 ppm Hard

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

Water Hardness Guides

Learn more about water hardness and how to manage it.

What Is Water Hardness? Effects Solutions Water Softeners Limescale Removal
Recommended

Products for Salisbury

Popular choices for households dealing with hard water.

Splendid Twin Tank Water Softener

Twin-tank electric softener sized for 1 to 7 bedroom homes. Removes limescale from pipes, boilers, and appliances and delivers continuous soft water, with metered regeneration to keep salt use low.

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Philips Shower Filter

Quick win for skin and hair in hard water areas. Reduces chlorine and limescale, fits standard shower hoses in minutes, no tools needed. Cartridge lasts around 6 months.

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BRITA Marella Water Filter Jug

UK's best-selling filter jug. Reduces limescale, chlorine, and metals for better-tasting tap water. Quick first step alongside a softener.

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FAQ

Common questions about Salisbury water

Is Salisbury water hard or soft?
Salisbury is classified as hard, averaging 259 ppm across 11 postcode districts. Expect visible limescale on kettles and taps within weeks at this level.
Which postcode in Salisbury has the hardest water?
SP9 has the hardest water in Salisbury at 273 ppm, while SP10 is the softest at 214 ppm. See the full table above for every district.
Which water company supplies Salisbury?
Salisbury is supplied by Wessex Water, covering 11 postcode districts across Wiltshire.
Is tap water in Salisbury 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.
Do I need a water softener in Salisbury?
At 259 ppm, many households in Salisbury notice limescale in kettles and showerheads within weeks. A shower filter is the cheapest first step; a whole-house softener gives the most complete protection.
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