WaterHard.uk

Water Hardness in OX18 Carterton

Supplied by Thames Water • Oxfordshire, South East

254 PPM 0 200 400
Hard
254
ppm (mg/L CaCO₃)
17.8°
Clark Degrees
14.2°
German Degrees (dH)
25.4°
French Degrees (fH)

Water Hardness in Carterton (OX18)

The water in postcode district OX18 is classified as hard with a hardness level of 254 ppm (parts per million) calcium carbonate. This is 47 ppm above the UK national average of 207 ppm.

Your water is supplied by Thames Water, which serves the South East region. Thames 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 Carterton

At 254 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 OX18 Compares

Area Hardness PPM
OX18 Carterton
254 ppm
254 ppm
UK National Average
207 ppm
207 ppm

Nearby Areas

OX17
Banbury
253 ppm
OX20
Woodstock
279 ppm

Frequently Asked Questions

What is the water hardness in OX18 Carterton?
The water in OX18 Carterton has a hardness level of 254 ppm (parts per million) calcium carbonate, classified as hard. This is 47 ppm above the UK national average of 207 ppm.
Which water company supplies OX18?
OX18 Carterton is supplied by Thames Water. Thames Water serves the South East region.
Is the water in OX18 safe to drink?
Yes. Hard water at 254 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 OX18?
For hard water at 254 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 254 ppm water hardness mean?
254 ppm means there are 254 parts per million of calcium carbonate dissolved in the water. This is equivalent to 17.8 Clark degrees, 14.2 German degrees, or 25.4 French degrees. Water above 180 ppm is generally considered hard.

Learn More

All postcodes in Carterton Thames Water coverage Hard water effects on your home Solutions for hard water

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