WaterHard.uk

Water Hardness in N4 London

Supplied by Thames Water • Greater London, London

0 200 400 341 ppm
Very Hard
341
ppm (mg/L CaCO₃)
23.9°
Clark Degrees
19.1°
German Degrees (dH)
34.1°
French Degrees (fH)

Water Hardness in London (N4)

The water in postcode district N4 is classified as very hard with a hardness level of 341 ppm (parts per million) calcium carbonate. This is 136 ppm above the UK national average of 205 ppm.

Your water is supplied by Thames Water, which serves the London region. Thames 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 London

At 341 ppm, you may benefit from a water softener or filter to reduce limescale and improve water quality.

View Solutions Water Softener Guide

How N4 Compares

Area Hardness PPM
N4 London
341 ppm
341 ppm
UK National Average
205 ppm
205 ppm

Nearby Areas

N3
London
340 ppm
N5
London
342 ppm
N6
London
343 ppm

Frequently Asked Questions

What is the water hardness in N4 London?
The water in N4 London has a hardness level of 341 ppm (parts per million) calcium carbonate, classified as very hard. This is 136 ppm above the UK national average of 205 ppm.
Which water company supplies N4?
N4 London is supplied by Thames Water. Thames Water serves the London region.
Is the water in N4 safe to drink?
Yes. Very Hard water at 341 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 N4?
For very hard water at 341 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 341 ppm water hardness mean?
341 ppm means there are 341 parts per million of calcium carbonate dissolved in the water. This is equivalent to 23.9 Clark degrees, 19.1 German degrees, or 34.1 French degrees. Water above 180 ppm is generally considered hard.

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