Hard water: Hard to deal with?

We all know the type of water that runs through our pipes, hard, soft, or somewhere in between. The real question is: what does it mean, and more importantly, does it matter? Drinking water in the UK is generally classified as ‘very hard’ (with a few exceptions in places such as Cornwall, Devon, and Wales), so in this blog, we’ll be focusing on hard water.

Surprisingly, hard water is water with high mineral content. Hard water is produced when the natural path of water is through limestone and chalk deposits. This gives us water than contains dissolved compounds, these tend to be calcium or magnesium compounds. That, in a nutshell, is what makes our water ‘hard’.

What does hard water do?

So, now we know what hard water is, but what does it do? The easiest way to spot hard water, is to try and lather soap in it. The dissolved calcium and magnesium ions in hard water make it more difficult to create a lather, instead forming soap scum. This means you’ll need more soap when doing the washing up or washing your hair, and it may leave that slimy soap layer around your plug holes. You know the one.

Another sure-fire sign of hard water is the limescale it creates. For those amongst us lucky enough to have never dealt with limescale, limescale is a chalky white substance that forms in your kettle, boiler, and pipes. It is left there when hard water evaporates, leaving behind calcium carbonate (a.k.a. limescale) deposits. This can clog up your plumbing and restrict the flow of water. Limescale costs millions by clogging up industrial machines every year.

Hard water and our bodies


Less studied is the effect that hard water has on our bodies. Now, it has been linked to all sorts of phenomena, with some camps swearing it causes eczema and acne (these links have not been proven). Here’s what we do know, hard water can make shampoo tougher to lather and rinse, meaning your hair can be a little duller than you might like. Studies have also linked hard water to the irritation of psoriasis in infants.

Give us the good news

We’ve given hard water some hard flak here (do excuse the pun), but what’s the good news? Well, most people prefer the taste of hard water, agreeing that soft water can taste a little salty due to the increased sodium levels in soft water.
Calcium and magnesium are part of our dietary requirements, and hard water can be a great source of both, saving you mega bucks on supplements and health drinks. Some studies have even correlated hard water and lower cardiovascular disease mortality. Pour us a glass already!

To conclude

Your hard water lesson for today is complete! What do you think, is hard water a benefit or an issue? Let us know in the comment section below!