East Yorkshire · Yorkshire

Is Hull water hard or soft?

Hard at 237 ppm · 20 postcode districts

  • Supplier Yorkshire Water
  • County East Yorkshire
  • Postcodes 20
Area average
237
ppm CaCO₃
Hard
Soft
Moderate
Hard
Very hard
0100200300400+

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The average water hardness in Hull is 237 ppm, classified as hard. Hull is served by Yorkshire Water, covering 20 postcode districts across East Yorkshire in the Yorkshire region.

Hardness varies across the area — see the table below for a breakdown by postcode district. HU20 has the hardest water at 267 ppm, while HU1 is the softest at 229 ppm.

By postcode

Water Hardness by Postcode in Hull

Sorted by hardness — tap a postcode for full details.

Postcode Water Company Hardness PPM Level
HU20 Yorkshire Water
267
267 ppm Hard
HU19 Yorkshire Water
243
243 ppm Hard
HU18 Yorkshire Water
242
242 ppm Hard
HU17 Yorkshire Water
241
241 ppm Hard
HU16 Yorkshire Water
240
240 ppm Hard
HU15 Yorkshire Water
239
239 ppm Hard
HU14 Yorkshire Water
238
238 ppm Hard
HU13 Yorkshire Water
237
237 ppm Hard
HU9 Yorkshire Water
237
237 ppm Hard
HU12 Yorkshire Water
236
236 ppm Hard
HU8 Yorkshire Water
236
236 ppm Hard
HU11 Yorkshire Water
235
235 ppm Hard
HU7 Yorkshire Water
235
235 ppm Hard
HU10 Yorkshire Water
234
234 ppm Hard
HU6 Yorkshire Water
234
234 ppm Hard
HU5 Yorkshire Water
233
233 ppm Hard
HU4 Yorkshire Water
232
232 ppm Hard
HU3 Yorkshire Water
231
231 ppm Hard
HU2 Yorkshire Water
230
230 ppm Hard
HU1 Yorkshire Water
229
229 ppm Hard
Suppliers

Water Companies Serving Hull

Tap for full coverage area and hardness data.

Yorkshire Water

215 ppm Hard

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 Hull

Popular choices for households dealing with hard water.

Splendid Twin Tank Water Softener

From ~£400

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

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 around 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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FAQ

Common questions about Hull water

Is Hull water hard or soft?
Hull is classified as hard, averaging 237 ppm across 20 postcode districts. Expect visible limescale on kettles and taps within weeks at this level.
Which postcode in Hull has the hardest water?
HU20 has the hardest water in Hull at 267 ppm, while HU1 is the softest at 229 ppm. See the full table above for every district.
Which water company supplies Hull?
Hull is supplied by Yorkshire Water, covering 20 postcode districts across East Yorkshire.
Is tap water in Hull safe to drink?
Yes. All tap water in Hull meets UK drinking water standards. Hardness affects taste and limescale buildup but not safety.
Do I need a water softener in Hull?
At 237 ppm, many households in Hull 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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