Is Doncaster a hard water area?
Yes. Tap water across the DN postcode area is very hard, the top band on the scale water companies use, with a median of 293 mg/L calcium carbonate. It ranges from 242 mg/L in DN36 to 422 mg/L in DN15, from 29 districts with their own water company reading and 3 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 DN 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 |
|---|---|---|
| DN15 | 422 | very hard |
| DN20 | 376 | very hard |
| DN17 | 376 | very hard |
| DN16 | 376 | very hard |
| DN21 | 332 | very hard |
| DN38 | 315 | very hard |
| DN32 | 301 | very hard |
| DN41 | 301 | very hard |
| DN31 | 301 | very hard |
| DN34 | 301 | very hard |
| DN37 | 301 | very hard |
| DN35 | 296 | very hard |
| DN19 | 293 | very hard |
| DN22* | 293 | very hard |
| DN40 | 293 | very hard |
| DN9* | 293 | very hard |
| DN18 | 293 | very hard |
| DN10* | 293 | very hard |
| DN39 | 293 | very hard |
| DN33 | 288 | very hard |
| DN14 | 286 | very hard |
| DN6 | 265 | very hard |
| DN12 | 265 | very hard |
| DN7 | 262 | very hard |
| DN4 | 258 | very hard |
| DN8 | 258 | very hard |
| DN5 | 257 | very hard |
| DN1 | 253 | very hard |
| DN3 | 252 | very hard |
| DN2 | 252 | very hard |
| DN11 | 246 | hard |
| DN36 | 242 | hard |
Softener quotes for Doncaster
At 293 mg/L most DN homes get their money back on a softener within a few years. Free quotes from installers covering your postcode, no obligation.
Request a free assessment and we'll come back to you with local installer options for your area.
100%
free, no obligation
shared only with your consent
Check your exact postcode
The area figure is a median. Your district can sit anywhere between 242 and 422 mg/L.
Nearby areas
- Is Doncaster a hard water area?
- Yes. The median hardness across DN postcode districts is 293 mg/L calcium carbonate, which is very hard. 100% of the 32 districts we hold readings for are hard or very hard (180 mg/L and above).
- What is the water hardness in Doncaster?
- Between 242 and 422 mg/L depending on the district, with a median of 293. The hardest measured district is DN15 at 422 mg/L and the softest is DN36 at 242. 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 Doncaster?
- In most DN homes a softener pays for itself: at 293 mg/L kettles, boilers and showers scale up quickly. Check your own district first, because hardness varies from 242 to 422 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.