WaterHard.uk

Water Hardness in HA3 Harrow

Supplied by Thames Water • Greater London, London

0 200 400 330 ppm
Very Hard
330
ppm (mg/L CaCO₃)
23.1°
Clark Degrees
18.5°
German Degrees (dH)
33°
French Degrees (fH)

Water Hardness in Harrow (HA3)

The water in postcode district HA3 is classified as very hard with a hardness level of 330 ppm (parts per million) calcium carbonate. This is 125 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 Harrow

At 330 ppm, you may benefit from a water softener or filter to reduce limescale and improve water quality.

View Solutions Water Softener Guide

How HA3 Compares

Area Hardness PPM
HA3 Harrow
330 ppm
330 ppm
UK National Average
205 ppm
205 ppm

Nearby Areas

HA2
Harrow
329 ppm
HA4
Ruislip
331 ppm
HA5
Pinner
332 ppm

Frequently Asked Questions

What is the water hardness in HA3 Harrow?
The water in HA3 Harrow has a hardness level of 330 ppm (parts per million) calcium carbonate, classified as very hard. This is 125 ppm above the UK national average of 205 ppm.
Which water company supplies HA3?
HA3 Harrow is supplied by Thames Water. Thames Water serves the London region.
Is the water in HA3 safe to drink?
Yes. Very Hard water at 330 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 HA3?
For very hard water at 330 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 330 ppm water hardness mean?
330 ppm means there are 330 parts per million of calcium carbonate dissolved in the water. This is equivalent to 23.1 Clark degrees, 18.5 German degrees, or 33 French degrees. Water above 180 ppm is generally considered hard.

All postcodes in Harrow • Thames Water coverage • Hardest water areas • Softest water areas

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