WaterHard.uk

Water Hardness in CR0 Croydon

Supplied by South East Water • Greater London, London

292 PPM 0 200 400
Hard
292
ppm (mg/L CaCO₃)
20.4°
Clark Degrees
16.4°
German Degrees (dH)
29.2°
French Degrees (fH)

Water Hardness in Croydon (CR0)

The water in postcode district CR0 is classified as hard with a hardness level of 292 ppm (parts per million) calcium carbonate. This is 85 ppm above the UK national average of 207 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 Hard Water Mean for Your Home?

  • ! Significant limescale buildup in kettles, pipes and boilers
  • ! Soap scum on shower screens and taps
  • ! Higher energy bills from scale in heating elements
  • ! Dry skin and dull hair after washing
  • ! White residue on dishes and glassware

Solutions for Hard Water in Croydon

At 292 ppm, you may benefit from a water softener or filter to reduce limescale and improve water quality.

View Solutions Water Softener Guide

Water2Buy W2B200 Water Softener

From ~£400

Best-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, suits 1–4 people.

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Philips AWP1775 Shower Filter

From ~£30

Instant improvement for skin and hair. Reduces chlorine and limescale at the showerhead — no plumbing needed. KDF filtration, cartridge lasts ~6 months. A great first step in a hard water area.

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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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How CR0 Compares

Area Hardness PPM
CR0 Croydon
292 ppm
292 ppm
UK National Average
207 ppm
207 ppm

Nearby Areas

CR2
South Croydon
294 ppm

Frequently Asked Questions

What is the water hardness in CR0 Croydon?
The water in CR0 Croydon has a hardness level of 292 ppm (parts per million) calcium carbonate, classified as hard. This is 85 ppm above the UK national average of 207 ppm.
Which water company supplies CR0?
CR0 Croydon is supplied by South East Water. South East Water serves the London region.
Is the water in CR0 safe to drink?
Yes. Hard water at 292 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 CR0?
For hard water at 292 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 292 ppm water hardness mean?
292 ppm means there are 292 parts per million of calcium carbonate dissolved in the water. This is equivalent to 20.4 Clark degrees, 16.4 German degrees, or 29.2 French degrees. Water above 180 ppm is generally considered hard.

Learn More

All postcodes in Croydon South East Water coverage Hard water effects on your home Solutions for hard water

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