WaterHard.uk

Water Hardness in RH11 Crawley

Supplied by Southern Water • Surrey, South East

0 200 400 312 ppm
Very Hard
312
ppm (mg/L CaCO₃)
21.8°
Clark Degrees
17.5°
German Degrees (dH)
31.2°
French Degrees (fH)

Water Hardness in Crawley (RH11)

The water in postcode district RH11 is classified as very hard with a hardness level of 312 ppm (parts per million) calcium carbonate. This is 107 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 Crawley

At 312 ppm, you may benefit from a water softener or filter to reduce limescale and improve water quality.

View Solutions Water Softener Guide

How RH11 Compares

Area Hardness PPM
RH11 Crawley
312 ppm
312 ppm
UK National Average
205 ppm
205 ppm

Nearby Areas

RH10
Crawley
311 ppm
RH12
Horsham
313 ppm
RH13
Horsham
314 ppm

Frequently Asked Questions

What is the water hardness in RH11 Crawley?
The water in RH11 Crawley has a hardness level of 312 ppm (parts per million) calcium carbonate, classified as very hard. This is 107 ppm above the UK national average of 205 ppm.
Which water company supplies RH11?
RH11 Crawley is supplied by Southern Water. Southern Water serves the South East region.
Is the water in RH11 safe to drink?
Yes. Very Hard water at 312 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 RH11?
For very hard water at 312 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 312 ppm water hardness mean?
312 ppm means there are 312 parts per million of calcium carbonate dissolved in the water. This is equivalent to 21.8 Clark degrees, 17.5 German degrees, or 31.2 French degrees. Water above 180 ppm is generally considered hard.

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