WaterSouth East Water Water Hardness
Kent & Sussex • 17 postcodes served
Hard
297
Average ppm
292
Minimum ppm
301
Maximum ppm
17
Postcodes Served
About South East Water
South East Water supplies drinking water to 2.2 million customers across Kent, Sussex, Surrey, Berkshire and Hampshire. Chalk and greensand aquifers produce hard water throughout the region.
Hardness Distribution
0
Soft (0%)
0
Slightly Hard (0%)
0
Moderate (0%)
16
Hard (94%)
1
Very Hard (6%)
All Areas Served by South East Water
| Postcode | Town | Hardness | PPM | Level |
|---|---|---|---|---|
| CR9 | Croydon | 301 ppm | Very Hard | |
| BR8 | Swanley | 300 ppm | Hard | |
| CR8 | Purley | 300 ppm | Hard | |
| BR7 | Chislehurst | 299 ppm | Hard | |
| CR7 | Thornton Heath | 299 ppm | Hard | |
| BR6 | Orpington | 298 ppm | Hard | |
| CR6 | Warlingham | 298 ppm | Hard | |
| BR5 | Orpington | 297 ppm | Hard | |
| CR5 | Coulsdon | 297 ppm | Hard | |
| BR4 | West Wickham | 296 ppm | Hard | |
| CR4 | Mitcham | 296 ppm | Hard | |
| BR3 | Beckenham | 295 ppm | Hard | |
| CR3 | Caterham | 295 ppm | Hard | |
| BR2 | Bromley | 294 ppm | Hard | |
| CR2 | South Croydon | 294 ppm | Hard | |
| BR1 | Bromley | 293 ppm | Hard | |
| CR0 | Croydon | 292 ppm | Hard |
Recommended Products for South East Water Customers
Popular choices for households on hard water supplied by South East Water.
Water2Buy W2B200 Water Softener
From ~£400Best-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.
View on AmazonPhilips AWP1775 Shower Filter
From ~£30A quick, affordable upgrade. Reduces chlorine and limescale at the showerhead — fits any standard UK shower hose in minutes. Protects skin and hair from hard water damage.
View on AmazonGet Water Hardness Updates
Be notified when your water company reports changes to hardness levels.