WaterHard.uk

Is Canterbury Water Hard or Soft?

Hard at 255 ppm • Kent, South East

255 PPM 0 200 400
Hard

The average water hardness in Canterbury is 255 ppm, classified as hard. Canterbury is served by Southern Water, covering 21 postcode districts across Kent in the South East region.

Hardness varies across the area — see the table below for a breakdown by postcode district.

Water Hardness by Postcode in Canterbury

Postcode Water Company Hardness PPM Level
CT21 Southern Water
291 ppm
291 ppm Hard
CT20 Southern Water
290 ppm
290 ppm Hard
CT19 Southern Water
266 ppm
266 ppm Hard
CT18 Southern Water
265 ppm
265 ppm Hard
CT17 Southern Water
264 ppm
264 ppm Hard
CT16 Southern Water
263 ppm
263 ppm Hard
CT15 Southern Water
262 ppm
262 ppm Hard
CT14 Southern Water
261 ppm
261 ppm Hard
CT13 Southern Water
260 ppm
260 ppm Hard
CT12 Southern Water
259 ppm
259 ppm Hard
CT11 Southern Water
258 ppm
258 ppm Hard
CT10 Southern Water
257 ppm
257 ppm Hard
CT9 Southern Water
245 ppm
245 ppm Hard
CT8 Southern Water
244 ppm
244 ppm Hard
CT7 Southern Water
243 ppm
243 ppm Hard
CT6 Southern Water
242 ppm
242 ppm Hard
CT5 Southern Water
241 ppm
241 ppm Hard
CT4 Southern Water
240 ppm
240 ppm Hard
CT3 Southern Water
239 ppm
239 ppm Hard
CT2 Southern Water
238 ppm
238 ppm Hard
CT1 Southern Water
237 ppm
237 ppm Hard

Water Companies Serving Canterbury

Southern Water

Average hardness: 263 ppm (Hard) • 131 postcodes served

Water Hardness Guides

What Is Water Hardness? Effects Solutions Water Softeners Limescale Removal

Recommended Products for Canterbury

Popular choices for households dealing with hard water in this area.

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.

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Philips AWP1775 Shower Filter

From ~£30

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 ~6 months.

View on Amazon

BRITA Marella Water Filter Jug

From ~£20

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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