WaterWater Hardness in SW1Y London
Supplied by Severn Trent Water • Greater London, London
Moderately Hard
177
ppm (mg/L CaCO₃)
12.4°
Clark Degrees
9.9°
German Degrees (dH)
17.7°
French Degrees (fH)
Water Hardness in London (SW1Y)
The water in postcode district SW1Y is classified as moderately hard with a hardness level of 177 ppm (parts per million) calcium carbonate. This is 28 ppm below the UK national average of 205 ppm.
Your water is supplied by Severn Trent Water, which serves the London region. Severn Trent Water draws water from sources that naturally contain dissolved minerals, primarily calcium and magnesium compounds.
What Does Moderately Hard Water Mean for Your Home?
- ~ Noticeable limescale buildup in kettles and boilers
- ~ Soap may not lather as easily
- ~ Showerhead may need descaling periodically
- ~ Slight film on glassware after washing
How SW1Y Compares
| Area | Hardness | PPM |
|---|---|---|
| SW1Y London | 177 ppm | |
| UK National Average | 205 ppm |
Nearby Areas
Frequently Asked Questions
What is the water hardness in SW1Y London?
The water in SW1Y London has a hardness level of 177 ppm (parts per million) calcium carbonate, classified as moderately hard. This is 28 ppm below the UK national average of 205 ppm.
Which water company supplies SW1Y?
SW1Y London is supplied by Severn Trent Water. Severn Trent Water serves the London region.
Is the water in SW1Y safe to drink?
Yes. Moderately Hard water at 177 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 SW1Y?
At 177 ppm, the water in SW1Y is moderately hard and unlikely to cause significant issues. A jug filter can improve taste, but a water softener is generally not necessary.
What does 177 ppm water hardness mean?
177 ppm means there are 177 parts per million of calcium carbonate dissolved in the water. This is equivalent to 12.4 Clark degrees, 9.9 German degrees, or 17.7 French degrees. Water above 180 ppm is generally considered hard.
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