How Do Water Filters Work?


Do you prefer the taste of fresh, bottled water over tap water but don’t want to spend lots of money and create lots of plastic waste on buying bottled water? One option is a bottled water service which delivers fresh water to you in bulk and properly recycles the bottles afterward. Another is to buy a water filter for your home or office, allowing you to filter your tap water.

But how exactly does this work and is it effective? In this blog, we’ll explain how water filters work and whether they’re worth the purchase.

Why use a water filter?

On its journey to your glass, water comes into contact with lots of different contaminants, which it collects and carries with it in small amounts. Water from the municipal water supply is also treated with elements like chlorine in order to sanitize it. While most of these are harmless or in such low concentration that they won’t affect us, some people are concerned about the safety of their tap water. Others simply don’t like the taste of it because of these contaminants it contains.

These are the two main reasons why people use water filters – to literally filter out any contaminants that your tap water has picked up, making it cleaner for when you drink it.

How do water filters work?

So, how do they filter out all the contaminants? There are different types of water filters that work in slightly different ways. Some use a physical filter, like a sieve, to block particles, effectively removing them from your water as it passes through the filter. Some of these will only block larger particles while others can trap finer, microscopic particles.

Other filtration systems may contain carbon filters that are designed to absorb the contaminants from the water. Or another interesting technique is reverse osmosis – take a look at how reverse osmosis works here. Then there’s ion exchange, which is good for softening hard water as well as filtering out any contaminants.

Generally, water filtration systems use a combination of filtration techniques to ensure that as many different particles are removed from the water as possible. Some types of filters may achieve a higher purity level than others, depending on the techniques it is using to perform the filtration.

Our point-of-use filtration systems effectively remove 98% of all chlorine and lead, and 99.9% of waterborne cysts, such as mold spores. This gives you clean, good-tasting water in your home or office whenever you need it. Get in touch to find out more about our water filters and spring water delivery service.