South East · County

Water hardness in East Sussex

Average 271 ppm across 30 postcodes and 1 towns.

  • Range 217–321 ppm
  • Towns 1
  • Suppliers Southern Water
County average
271
ppm CaCO₃
Hard
Soft
Moderate
Hard
Very hard
0100200300400+
271
Avg ppm
217
Min ppm
321
Max ppm
30
Postcodes

Water Hardness Across East Sussex

The average water hardness in East Sussex is 271 ppm, classified as hard. Across 30 postcode districts in the South East region, hardness ranges from 217 ppm to 321 ppm.

East Sussex is served by Southern Water. With hard water, residents may benefit from a water softener to reduce limescale and protect appliances.

By town

Towns in East Sussex

Sorted by hardness — tap a town for full details.

Town Hardness PPM Level
Brighton
271
271 ppm Hard
Suppliers

Water Companies in East Sussex

Companies supplying water to this county.

Southern Water

263 ppm Hard
All postcodes

Postcodes in East Sussex

Every postcode district in the county, sorted by hardness.

Postcode Town Hardness PPM Level
BN45 Brighton
321
321 ppm Very Hard
BN44 Steyning
320
320 ppm Very Hard
BN43 Shoreham By Sea
319
319 ppm Very Hard
BN42 Brighton
318
318 ppm Very Hard
BN41 Brighton
317
317 ppm Very Hard
BN9 Newhaven
317
317 ppm Very Hard
BN8 Lewes
316
316 ppm Very Hard
BN7 Lewes
315
315 ppm Very Hard
BN6 Hassocks
314
314 ppm Very Hard
BN5 Henfield
313
313 ppm Very Hard
BN3 Hove
311
311 ppm Very Hard
BN2 Brighton
310
310 ppm Very Hard
BN1 Brighton
309
309 ppm Very Hard
BN27 Hailsham
257
257 ppm Hard
BN26 Polegate
256
256 ppm Hard
BN25 Seaford
255
255 ppm Hard
BN24 Pevensey
254
254 ppm Hard
BN23 Eastbourne
253
253 ppm Hard
BN22 Eastbourne
252
252 ppm Hard
BN21 Eastbourne
251
251 ppm Hard
BN20 Eastbourne
250
250 ppm Hard
BN18 Arundel
225
225 ppm Hard
BN17 Littlehampton
224
224 ppm Hard
BN16 Littlehampton
223
223 ppm Hard
BN15 Lancing
222
222 ppm Hard
BN14 Worthing
221
221 ppm Hard
BN13 Worthing
220
220 ppm Hard
BN12 Worthing
219
219 ppm Hard
BN11 Worthing
218
218 ppm Hard
BN10 Peacehaven
217
217 ppm Hard
Recommended

Products for East Sussex

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 East · Hardest water areas · Softest water areas · Hard water solutions

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