CoLC - UK's water 'ardness

Water hardness does indirectly affect the cost of living - those living in hard water areas spend more on soap / detergents, plus certain electrical "white goods" do not last as well - things like furred up kettles and washing machines. Also hot water pipework can become almost blocked by limescale deposits - and it needs more expensive energy to heat that water as the scaling is a poor conductor of heat.
[Quibble - this does not distinguish between temporary & permanent hardness - a chemist would do so]
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