WaterHard.uk

Water Hardness in SO18 Southampton

Supplied by Severn Trent Water • Hampshire, South East

0 200 400 190 ppm
Hard
190
ppm (mg/L CaCO₃)
13.3°
Clark Degrees
10.6°
German Degrees (dH)
19°
French Degrees (fH)

Water Hardness in Southampton (SO18)

The water in postcode district SO18 is classified as hard with a hardness level of 190 ppm (parts per million) calcium carbonate. This is 15 ppm below the UK national average of 205 ppm.

Your water is supplied by Severn Trent Water, which serves the South East region. Severn Trent 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 Southampton

At 190 ppm, you may benefit from a water softener or filter to reduce limescale and improve water quality.

View Solutions Water Softener Guide

How SO18 Compares

Area Hardness PPM
SO18 Southampton
190 ppm
190 ppm
UK National Average
205 ppm
205 ppm

Nearby Areas

SO17
Southampton
189 ppm
SO19
Southampton
191 ppm
SO20
Stockbridge
215 ppm

Frequently Asked Questions

What is the water hardness in SO18 Southampton?
The water in SO18 Southampton has a hardness level of 190 ppm (parts per million) calcium carbonate, classified as hard. This is 15 ppm below the UK national average of 205 ppm.
Which water company supplies SO18?
SO18 Southampton is supplied by Severn Trent Water. Severn Trent Water serves the South East region.
Is the water in SO18 safe to drink?
Yes. Hard water at 190 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 SO18?
For hard water at 190 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 190 ppm water hardness mean?
190 ppm means there are 190 parts per million of calcium carbonate dissolved in the water. This is equivalent to 13.3 Clark degrees, 10.6 German degrees, or 19 French degrees. Water above 180 ppm is generally considered hard.

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