What Do Water Filters Remove?

Water filters are becoming an increasingly popular item in many homes. Part of this is because of the increased awareness that the water reaching your home may not be as clean as you think it is.

What Do Water Filters Remove?

The problem revolves around two main factors:

  • The Journey

The water is treated at the treatment plant and then travels through miles of pipes to get to you. Unfortunately, it can pick up debris along the way. There is also a risk of contamination as even the smallest hole in a pipe can allow dirt and bacteria in.

Because there are so many miles of pipes it is impossible to monitor every single section for these tiny holes.

  • The Treatment

There are also issues surrounding the treatment of the water; in particular the addition of chlorine and fluoride. Chlorine kills bacteria but it also has the potential to be harmful to humans. Fluoride is added in order to improve bone and teeth health. But, there is a question whether it is actually beneficial.

Fitting a water filter makes sense; you’ll need to choose between the different types of water filters; depending on your specific needs.

But, what will your filter actually remove? The answer will depend on what your filter is made of:

Sand Filters

These are commonly used at the treatment works but you can have a cartridge filter installed at home. These filters will remove large particles from the water, specifically sediment and small pieces of the inside of the pipes.

It will make the water cleaner but it won’t get rid of any bacteria or chemicals.

Carbon Filters

These are the most common type of household filter and they are very effective at removing chlorine from the water. They do this because the carbon is heated, in the process it becomes aerated and thousands of tiny holes appear in it. This creates a large surface area for the water to move through, the chlorine particles are attracted to the carbon and stick to it; the water passes through normally.

This type of filter should be replaced regularly. However, while it is very good at removing chlorine and many other chemicals, it cannot get rid of bacteria or fluoride.

However, you can get a filter made of catalytic carbon. This is activated carbon that is made with cleaned animal bones. These bones have a compound that attracts fluoride, making them very effective at removing this chemical from your water.

Iron & Sulfur

If you want to remove these compounds from your water you’ll need to use an oxidizing filter. These are specially designed to remove iron, manganese, and sulfur from the water.

It is also worth noting that you can soften hard water by removing calcium and magnesium. However, this is done by a softening process and not a filter. Although it works in a similar way.

If you want pure water you may need to consider using all these types of water filters; if not, then the activated (aerated) carbon filter is the most popular option.

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