Frequently Asked
How do electronic water descalers work? Check our
FAQs.
Top 10 Hard Water Areas in England
(Listed by County)
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Top 10 Hard Water Areas in England
(Listed by Post Code)
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Note: both the above top 10 lists of hard water areas in England are based on sales of
Dyna Pipe Water Descalers,
not the actual water hardness.
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"Hard" water is water that contains high levels of dissolved minerals, mainly calcium and sometimes magnesium.
As rainwater trickles over soft rocks like chalk and limestone,
some of the minerals in the rocks become dissolved in the water, making it "hard".
Hard rocks, like granite, do not easily dissolve in water and so areas where there are hard rocks,
like Scotland and the South West of England, have soft water.
In Spain, where Dyna Pipe are located,
whether or not you live in a hard water area is complicated by the fact that water is often piped over long distances,
sometimes from the wetter north to the dry south.
Therefore, the water collected in an area where the rocks are hard can
have a delivery point hundreds of miles away where the rocks are soft.
A further complication arises from the fact that desalination plants produce much of the water in Spain.
This water is always soft, regardless of the production area's geology.
In the UK, water hardness is defined as the amount of calcium carbonate in one litre of water,
expressed either as mg/l or parts per million (ppm).
This is commonly confused with the amount of calcium in the water,
which is also expressed as mg/l or ppm,
but is less than half the amount of calcium carbonate for the same degree of hardness.
Using the UK definition, water with less than 100 mg per litre is soft to moderately soft,
while above 200 mg per litre defines hard to very hard water.
The maps below show hard water areas in the British Isles and in Spain.
Hard Water Map of UK and Ireland
Hard Water Map of Spain
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10 Fact About
Hard Water
1) Hard water is water that contains high levels of dissolved minerals, principally calcium and or magnesium ions.
2) 60% of homes in the UK are located in hard water areas.
3) Limescale forms when the hardness minerals precipitate out of hard water.
4) Limescale clogs pipes, reduces the efficiency of heating elements and leaves white deposits on tiles, baths and basins.
5) Scale that forms on showerheads, taps and bathroom surfaces is caused by evaporation, not precipitation.
6) Soap doesn't produce a good lather with hard water.
7) Hair is duller and harder to maintain when washed in hard water.
8) Although calcium is an essential part of a healthy diet, the calcium carbonate in hard water is much more difficult to absorb than the calcium in food products.
9) People who live in hard water areas have less incidences of heart disease.
10) Guinness is brewed using hard water.
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