WaterHard.uk

Water Hardness in TN13 Sevenoaks

Supplied by Southern Water • Kent, South East

202 PPM 0 200 400
Hard
202
ppm (mg/L CaCO₃)
14.1°
Clark Degrees
11.3°
German Degrees (dH)
20.2°
French Degrees (fH)

Water Hardness in Sevenoaks (TN13)

The water in postcode district TN13 is classified as hard with a hardness level of 202 ppm (parts per million) calcium carbonate. This is 5 ppm below the UK national average of 207 ppm.

Your water is supplied by Southern Water, which serves the South East region. Southern 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 Sevenoaks

At 202 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 TN13 Compares

Area Hardness PPM
TN13 Sevenoaks
202 ppm
202 ppm
UK National Average
207 ppm
207 ppm

Nearby Areas

TN12
Tonbridge
201 ppm
TN14
Sevenoaks
203 ppm
TN15
Sevenoaks
204 ppm

Frequently Asked Questions

What is the water hardness in TN13 Sevenoaks?
The water in TN13 Sevenoaks has a hardness level of 202 ppm (parts per million) calcium carbonate, classified as hard. This is 5 ppm below the UK national average of 207 ppm.
Which water company supplies TN13?
TN13 Sevenoaks is supplied by Southern Water. Southern Water serves the South East region.
Is the water in TN13 safe to drink?
Yes. Hard water at 202 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 TN13?
For hard water at 202 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 202 ppm water hardness mean?
202 ppm means there are 202 parts per million of calcium carbonate dissolved in the water. This is equivalent to 14.1 Clark degrees, 11.3 German degrees, or 20.2 French degrees. Water above 180 ppm is generally considered hard.

Learn More

All postcodes in Sevenoaks Southern Water coverage Hard water effects on your home Solutions for hard water

Get updates for TN13

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