WaterHard.uk

Water Hardness in CR9 Croydon

Supplied by South East Water • Greater London, London

0 200 400 301 ppm
Very Hard
301
ppm (mg/L CaCO₃)
21.1°
Clark Degrees
16.9°
German Degrees (dH)
30.1°
French Degrees (fH)

Water Hardness in Croydon (CR9)

The water in postcode district CR9 is classified as very hard with a hardness level of 301 ppm (parts per million) calcium carbonate. This is 96 ppm above the UK national average of 205 ppm.

Your water is supplied by South East Water, which serves the London region. South East Water draws water from sources that naturally contain dissolved minerals, primarily calcium and magnesium compounds.

What Does Very Hard Water Mean for Your Home?

  • ! Heavy limescale requiring frequent descaling
  • ! Blocked showerheads and reduced water flow
  • ! Substantially higher energy bills from boiler scale
  • ! Dry, itchy skin and lifeless hair
  • ! White crusty deposits on taps and surfaces
  • ! Reduced lifespan of washing machines and dishwashers

Solutions for Hard Water in Croydon

At 301 ppm, you may benefit from a water softener or filter to reduce limescale and improve water quality.

View Solutions Water Softener Guide

How CR9 Compares

Area Hardness PPM
CR9 Croydon
301 ppm
301 ppm
UK National Average
205 ppm
205 ppm

Nearby Areas

CR8
Purley
300 ppm

Frequently Asked Questions

What is the water hardness in CR9 Croydon?
The water in CR9 Croydon has a hardness level of 301 ppm (parts per million) calcium carbonate, classified as very hard. This is 96 ppm above the UK national average of 205 ppm.
Which water company supplies CR9?
CR9 Croydon is supplied by South East Water. South East Water serves the London region.
Is the water in CR9 safe to drink?
Yes. Very Hard water at 301 ppm is safe to drink. Water hardness affects taste and can cause limescale, but it is not a health risk. In fact, hard water contains beneficial minerals like calcium and magnesium.
How can I reduce water hardness in CR9?
For very hard water at 301 ppm, a whole-house water softener is the most effective solution. You can also use a jug filter for drinking water, descaling products for appliances, and a shower filter for better skin and hair.
What does 301 ppm water hardness mean?
301 ppm means there are 301 parts per million of calcium carbonate dissolved in the water. This is equivalent to 21.1 Clark degrees, 16.9 German degrees, or 30.1 French degrees. Water above 180 ppm is generally considered hard.

All postcodes in Croydon • South East Water coverage • Hardest water areas • Softest water areas

Get updates for CR9

We'll notify you when South East Water reports changes to water hardness in your area.