WaterHard.uk

Water Hardness in SL1 Slough

Supplied by Thames Water • Berkshire, South East

0 200 400 348 ppm
Very Hard
348
ppm (mg/L CaCO₃)
24.4°
Clark Degrees
19.5°
German Degrees (dH)
34.8°
French Degrees (fH)

Water Hardness in Slough (SL1)

The water in postcode district SL1 is classified as very hard with a hardness level of 348 ppm (parts per million) calcium carbonate. This is 143 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 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 Slough

At 348 ppm, you may benefit from a water softener or filter to reduce limescale and improve water quality.

View Solutions Water Softener Guide

How SL1 Compares

Area Hardness PPM
SL1 Slough
348 ppm
348 ppm
UK National Average
205 ppm
205 ppm

Nearby Areas

SL2
Slough
349 ppm
SL3
Slough
350 ppm

Frequently Asked Questions

What is the water hardness in SL1 Slough?
The water in SL1 Slough has a hardness level of 348 ppm (parts per million) calcium carbonate, classified as very hard. This is 143 ppm above the UK national average of 205 ppm.
Which water company supplies SL1?
SL1 Slough is supplied by Thames Water. Thames Water serves the South East region.
Is the water in SL1 safe to drink?
Yes. Very Hard water at 348 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 SL1?
For very hard water at 348 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 348 ppm water hardness mean?
348 ppm means there are 348 parts per million of calcium carbonate dissolved in the water. This is equivalent to 24.4 Clark degrees, 19.5 German degrees, or 34.8 French degrees. Water above 180 ppm is generally considered hard.

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