WaterHard.uk

Water Hardness in RH4 Dorking

Supplied by Southern Water • Surrey, South East

0 200 400 324 ppm
Very Hard
324
ppm (mg/L CaCO₃)
22.7°
Clark Degrees
18.2°
German Degrees (dH)
32.4°
French Degrees (fH)

Water Hardness in Dorking (RH4)

The water in postcode district RH4 is classified as very hard with a hardness level of 324 ppm (parts per million) calcium carbonate. This is 119 ppm above the UK national average of 205 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 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 Dorking

At 324 ppm, you may benefit from a water softener or filter to reduce limescale and improve water quality.

View Solutions Water Softener Guide

How RH4 Compares

Area Hardness PPM
RH4 Dorking
324 ppm
324 ppm
UK National Average
205 ppm
205 ppm

Nearby Areas

RH3
Betchworth
323 ppm
RH5
Dorking
325 ppm
RH6
Horley
326 ppm

Frequently Asked Questions

What is the water hardness in RH4 Dorking?
The water in RH4 Dorking has a hardness level of 324 ppm (parts per million) calcium carbonate, classified as very hard. This is 119 ppm above the UK national average of 205 ppm.
Which water company supplies RH4?
RH4 Dorking is supplied by Southern Water. Southern Water serves the South East region.
Is the water in RH4 safe to drink?
Yes. Very Hard water at 324 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 RH4?
For very hard water at 324 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 324 ppm water hardness mean?
324 ppm means there are 324 parts per million of calcium carbonate dissolved in the water. This is equivalent to 22.7 Clark degrees, 18.2 German degrees, or 32.4 French degrees. Water above 180 ppm is generally considered hard.

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