What is the Difference Between Hard and Soft Water?

Water in the UK varies from location to location, mainly in regards to the amount of dissolved minerals. This is what makes a water hard or soft and, while both types have their own benefits, the downsizes are what really matters when it comes to your boiler or your water pipes.

Ideally, you want the perfect water type flowing through the pipes in your home, so that there’s no damage to the water system over time. But what exactly is hard and soft water? Knowing this difference can help you achieve the results you want and avoid issues in the future!

What is Hard Water?

This type of water has a high concentration of dissolved minerals, like calcium, chalk and magnesium, which are added to the water as it makes its way through the ground. Hard water is not harmful to our health. On the contrary, it is often preferred to soft water, since it contains so many minerals.

However, hard water can leave a deposit, called scale, in your pipes, which can clog your plumbing and damage the flow of heat in your boiler. This leads to overheating which, in turn, has a high possibility of leading to damages.

What is Soft Water?

When rainwater falls, it contains few or no extra elements. This is called soft water. Despite the fact that occurs naturally, this type of water can also be created through treatments that remove the hard elements. While it may seem like soft water is the right choice, then, this may not be the case.

After all, if the water flowing through the pipes in your home is too soft, it can cause staining. It can also be resistant to chlorine which, while it may not affect your plumbing, can be problematic to places such as swimming pools.


Generally speaking, hard water can be the real issue when it comes to your boiler, so it’s essential that you ensure there’s no scale build-up. This can help you avoid overheating and, of course, more serious issues, such as tube failure and the malfunction of parts. You can also avoid high energy bills at the end of the month!


In order to take full advantage of your boiler and make sure that it’s working properly at all times, especially now with winter approaching fast, have it serviced regularly by professionals. Don’t hesitate to contact us to learn more about how we can help you!