Is Hull a hard water area?
Yes. Tap water across the HU postcode area is very hard, the top band on the scale water companies use, with a median of 302 mg/L calcium carbonate. It ranges from 131 mg/L in HU13 to 373 mg/L in HU16, from 19 districts with their own water company reading and 1 estimated from the area.
- Soft
- Moderately soft
- Slightly hard
- Very hard
- Soft
- 0 to 60 mg/L
- Moderately soft
- 60 to 120 mg/L
- Slightly hard
- 120 to 180 mg/L
- Hard
- 180 to 200 mg/L
- Very hard
- 200 to 400 mg/L
Hardness by HU district
Hardest first. Hard starts at 180 mg/L, very hard at 250. Districts marked with an asterisk take the area's median rather than a reading of their own.
| District | mg/L | Hardness |
|---|---|---|
| HU16 | 373 | very hard |
| HU10 | 366 | very hard |
| HU3 | 365 | very hard |
| HU4 | 360 | very hard |
| HU1 | 355 | very hard |
| HU2 | 355 | very hard |
| HU17 | 337 | very hard |
| HU5 | 326 | very hard |
| HU6 | 312 | very hard |
| HU14 | 302 | very hard |
| HU20* | 302 | very hard |
| HU15 | 296 | very hard |
| HU9 | 290 | very hard |
| HU7 | 271 | very hard |
| HU19 | 262 | very hard |
| HU18 | 256 | very hard |
| HU8 | 255 | very hard |
| HU12 | 215 | hard |
| HU11 | 189 | hard |
| HU13 | 131 | moderately hard |
Softener quotes for Hull
At 302 mg/L most HU homes get their money back on a softener within a few years. Free quotes from installers covering your postcode, no obligation.
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Check your exact postcode
The area figure is a median. Your district can sit anywhere between 131 and 373 mg/L.
Nearby areas
- Is Hull a hard water area?
- Yes. The median hardness across HU postcode districts is 302 mg/L calcium carbonate, which is very hard. 95% of the 20 districts we hold readings for are hard or very hard (180 mg/L and above).
- What is the water hardness in Hull?
- Between 131 and 373 mg/L depending on the district, with a median of 302. The hardest measured district is HU16 at 373 mg/L and the softest is HU13 at 131. Figures come from water company drinking-water tests, with postcode-area estimates for districts that have no reading of their own.
- Do I need a water softener in Hull?
- In most HU homes a softener pays for itself: at 302 mg/L kettles, boilers and showers scale up quickly. Check your own district first, because hardness varies from 131 to 373 within the area.
Hardness as mg/L calcium carbonate from water company drinking-water tests and postcode checkers. See the UK hardness map for every area.