WaterHard.uk

Is Portsmouth Water Hard or Soft?

Hard at 261 ppm • Hampshire, South East

261 PPM 0 200 400
Hard

The average water hardness in Portsmouth is 261 ppm, classified as hard. Portsmouth is served by Portsmouth Water, covering 34 postcode districts across Hampshire 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 Portsmouth

Postcode Water Company Hardness PPM Level
PO22 Portsmouth Water
287 ppm
287 ppm Hard
PO21 Portsmouth Water
286 ppm
286 ppm Hard
PO20 Portsmouth Water
285 ppm
285 ppm Hard
PO9 Portsmouth Water
283 ppm
283 ppm Hard
PO8 Portsmouth Water
282 ppm
282 ppm Hard
PO7 Portsmouth Water
281 ppm
281 ppm Hard
PO6 Portsmouth Water
280 ppm
280 ppm Hard
PO5 Portsmouth Water
279 ppm
279 ppm Hard
PO4 Portsmouth Water
278 ppm
278 ppm Hard
PO3 Portsmouth Water
277 ppm
277 ppm Hard
PO2 Portsmouth Water
276 ppm
276 ppm Hard
PO1 Portsmouth Water
275 ppm
275 ppm Hard
PO41 Portsmouth Water
271 ppm
271 ppm Hard
PO40 Portsmouth Water
270 ppm
270 ppm Hard
PO19 Portsmouth Water
261 ppm
261 ppm Hard
PO18 Portsmouth Water
260 ppm
260 ppm Hard
PO17 Portsmouth Water
259 ppm
259 ppm Hard
PO16 Portsmouth Water
258 ppm
258 ppm Hard
PO15 Portsmouth Water
257 ppm
257 ppm Hard
PO14 Portsmouth Water
256 ppm
256 ppm Hard
PO13 Portsmouth Water
255 ppm
255 ppm Hard
PO12 Portsmouth Water
254 ppm
254 ppm Hard
PO11 Portsmouth Water
253 ppm
253 ppm Hard
PO10 Portsmouth Water
252 ppm
252 ppm Hard
PO39 Portsmouth Water
246 ppm
246 ppm Hard
PO38 Portsmouth Water
245 ppm
245 ppm Hard
PO37 Portsmouth Water
244 ppm
244 ppm Hard
PO36 Portsmouth Water
243 ppm
243 ppm Hard
PO35 Portsmouth Water
242 ppm
242 ppm Hard
PO34 Portsmouth Water
241 ppm
241 ppm Hard
PO33 Portsmouth Water
240 ppm
240 ppm Hard
PO32 Portsmouth Water
239 ppm
239 ppm Hard
PO31 Portsmouth Water
238 ppm
238 ppm Hard
PO30 Portsmouth Water
237 ppm
237 ppm Hard

Water Companies Serving Portsmouth

Portsmouth Water

Average hardness: 261 ppm (Hard) • 34 postcodes served

Water Hardness Guides

What Is Water Hardness? Effects Solutions Water Softeners Limescale Removal

Recommended Products for Portsmouth

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.

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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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