WaterHard.uk

Water Hardness in CF15 Cardiff

Supplied by Welsh Water (Dwr Cymru) • Cardiff, Wales

39 PPM 0 200 400
Soft
39
ppm (mg/L CaCO₃)
2.7°
Clark Degrees
2.2°
German Degrees (dH)
3.9°
French Degrees (fH)

Water Hardness in Cardiff (CF15)

The water in postcode district CF15 is classified as soft with a hardness level of 39 ppm (parts per million) calcium carbonate. This is 168 ppm below the UK national average of 207 ppm.

Your water is supplied by Welsh Water (Dwr Cymru), which serves the Wales region. Welsh Water (Dwr Cymru) draws water from sources that naturally contain dissolved minerals, primarily calcium and magnesium compounds.

What Does Soft Water Mean for Your Home?

  • ~ Soap lathers easily with less product needed
  • ~ Minimal limescale buildup in appliances
  • ~ Gentle on skin and hair
  • ~ May taste slightly flat compared to harder water

Test Your Water in Cardiff

At 39 ppm, your water is soft. A home testing kit lets you verify the exact hardness and check for other contaminants.

SJ WAVE 16-in-1 Water Testing Kit

From ~£10

Quick home water test strips — checks hardness, pH, chlorine, lead, and 12 other parameters. Results in 60 seconds. 100 strips per pack.

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How CF15 Compares

Area Hardness PPM
CF15 Cardiff
39 ppm
39 ppm
UK National Average
207 ppm
207 ppm

Nearby Areas

CF14
Cardiff
38 ppm

Frequently Asked Questions

What is the water hardness in CF15 Cardiff?
The water in CF15 Cardiff has a hardness level of 39 ppm (parts per million) calcium carbonate, classified as soft. This is 168 ppm below the UK national average of 207 ppm.
Which water company supplies CF15?
CF15 Cardiff is supplied by Welsh Water (Dwr Cymru). Welsh Water (Dwr Cymru) serves the Wales region.
Is the water in CF15 safe to drink?
Yes. Soft water at 39 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 CF15?
At 39 ppm, the water in CF15 is soft and unlikely to cause significant issues. A jug filter can improve taste, but a water softener is generally not necessary.
What does 39 ppm water hardness mean?
39 ppm means there are 39 parts per million of calcium carbonate dissolved in the water. This is equivalent to 2.7 Clark degrees, 2.2 German degrees, or 3.9 French degrees. Water above 180 ppm is generally considered hard.

Learn More

All postcodes in Cardiff Welsh Water (Dwr Cymru) coverage Hard water effects on your home Solutions for hard water

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