WaterHard.uk

Water Hardness in SL9 Gerrards Cross

Supplied by Thames Water • Berkshire, South East

0 200 400 255 ppm
Hard
255
ppm (mg/L CaCO₃)
17.8°
Clark Degrees
14.3°
German Degrees (dH)
25.5°
French Degrees (fH)

Water Hardness in Gerrards Cross (SL9)

The water in postcode district SL9 is classified as hard with a hardness level of 255 ppm (parts per million) calcium carbonate. This is 50 ppm above the UK national average of 205 ppm.

Your water is supplied by Thames Water, which serves the South East region. Thames 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 Gerrards Cross

At 255 ppm, you may benefit from a water softener or filter to reduce limescale and improve water quality.

View Solutions Water Softener Guide

How SL9 Compares

Area Hardness PPM
SL9 Gerrards Cross
255 ppm
255 ppm
UK National Average
205 ppm
205 ppm

Nearby Areas

SL8
Bourne End
254 ppm

Frequently Asked Questions

What is the water hardness in SL9 Gerrards Cross?
The water in SL9 Gerrards Cross has a hardness level of 255 ppm (parts per million) calcium carbonate, classified as hard. This is 50 ppm above the UK national average of 205 ppm.
Which water company supplies SL9?
SL9 Gerrards Cross is supplied by Thames Water. Thames Water serves the South East region.
Is the water in SL9 safe to drink?
Yes. Hard water at 255 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 SL9?
For hard water at 255 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 255 ppm water hardness mean?
255 ppm means there are 255 parts per million of calcium carbonate dissolved in the water. This is equivalent to 17.8 Clark degrees, 14.3 German degrees, or 25.5 French degrees. Water above 180 ppm is generally considered hard.

All postcodes in Gerrards Cross • Thames Water coverage • Hardest water areas • Softest water areas

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