South West · County

Water hardness in Dorset

Average 225 ppm across 37 postcodes and 2 towns.

  • Range 159–286 ppm
  • Towns 2
  • Suppliers Severn Trent Water, Wessex Water
County average
225
ppm CaCO₃
Hard
Soft
Moderate
Hard
Very hard
0100200300400+
225
Avg ppm
159
Min ppm
286
Max ppm
37
Postcodes

Water Hardness Across Dorset

The average water hardness in Dorset is 225 ppm, classified as hard. Across 37 postcode districts in the South West region, hardness ranges from 159 ppm to 286 ppm.

Dorset is served by Severn Trent Water and Wessex Water. With hard water, residents may benefit from a water softener to reduce limescale and protect appliances.

By town

Towns in Dorset

Sorted by hardness — tap a town for full details.

Town Hardness PPM Level
Bournemouth
228
228 ppm Hard
Dorchester
220
220 ppm Hard
Suppliers

Water Companies in Dorset

Companies supplying water to this county.

Severn Trent Water

222 ppm Hard

Wessex Water

231 ppm Hard
All postcodes

Postcodes in Dorset

Every postcode district in the county, sorted by hardness.

Postcode Town Hardness PPM Level
BH19 Swanage
286
286 ppm Hard
BH18 Broadstone
285
285 ppm Hard
BH17 Poole
284
284 ppm Hard
BH16 Poole
283
283 ppm Hard
BH15 Poole
282
282 ppm Hard
BH14 Poole
281
281 ppm Hard
BH13 Branksome Park
280
280 ppm Hard
BH12 Poole
279
279 ppm Hard
BH11 Bournemouth
278
278 ppm Hard
BH10 Bournemouth
277
277 ppm Hard
DT9 Sherborne
227
227 ppm Hard
DT8 Beaminster
226
226 ppm Hard
DT7 Lyme Regis
225
225 ppm Hard
DT6 Bridport
224
224 ppm Hard
DT5 Portland
223
223 ppm Hard
DT4 Weymouth
222
222 ppm Hard
DT3 Weymouth
221
221 ppm Hard
BH9 Bournemouth
220
220 ppm Hard
DT2 Dorchester
220
220 ppm Hard
BH8 Bournemouth
219
219 ppm Hard
DT1 Dorchester
219
219 ppm Hard
BH7 Bournemouth
218
218 ppm Hard
BH6 Bournemouth
217
217 ppm Hard
BH5 Bournemouth
216
216 ppm Hard
BH4 Bournemouth
215
215 ppm Hard
BH3 Bournemouth
214
214 ppm Hard
BH2 Bournemouth
213
213 ppm Hard
BH1 Bournemouth
212
212 ppm Hard
DT11 Blandford Forum
207
207 ppm Hard
DT10 Sturminster Newton
206
206 ppm Hard
BH31 Verwood
193
193 ppm Hard
BH25 New Milton
164
164 ppm Moderately Hard
BH24 Ringwood
163
163 ppm Moderately Hard
BH23 Christchurch
162
162 ppm Moderately Hard
BH22 Ferndown
161
161 ppm Moderately Hard
BH21 Wimborne
160
160 ppm Moderately Hard
BH20 Wareham
159
159 ppm Moderately Hard
Recommended

Products for Dorset

Top picks for households in hard water areas.

Water2Buy W2B200 Water Softener

From ~£400

Best-value whole-house ion-exchange softener for UK homes. Eliminates limescale from pipes, boilers, and appliances. Digital metered regeneration — low salt use. 7-year warranty.

View on Amazon

Philips AWP1775 Shower Filter

From ~£30

Instant improvement for skin and hair. Reduces chlorine and limescale at the showerhead — no plumbing needed. A good first step before committing to a full softener.

View on Amazon

Hard Water Guides

Learn more about water hardness and how to manage it.

What Is Water Hardness? Hard Water Effects Solutions
All counties in South West · Hardest water areas · Softest water areas · Hard water solutions

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