It’s a sad but true fact that the water which leaves a treatment plan is not necessarily safe to drink. It is full of chemicals and can even pick up bacteria and debris along the pipes between the treatment works and your home.

This is why so many people have decided to add water filters to their homes. If you haven’t got one then take a look at these Sydney water filters; once you realize what a water filter does and how it works you’ll want to get one.

There are actually two parts to water filters:

Physical Filtration

This is the first stage of filtration. It is done at the treatment plant and again by the water filter fitted in your home. In essence there is a very fine material that acts as a sieve. Water is allowed to pass through but anything larger is not.

To understand this it is important to understand that while a water stream may seem large water molecules themselves are exceptionally small. A sieve that allows water through will catch minute particles that you can’t see with your naked eye.

This is the first step and removes any debris missed by the treatment works or picked up in your pipes between the treatment works and your home.

It’s important to note that even brand new pipes can shred debris inside; it also comes from the joins and corrosion.

Chemical Filtration

The second part of your water filter system is to remove the chemicals that have been added to your water. The main chemical that is added to water is chlorine. It is very effective at killing bacteria in the water. However, recent research suggests that chlorine can also have a negative impact on human health. This is why you’ll want to get rid of it!

The water filter uses a substance, often carbon to remove the chlorine and other chemicals as it passes through it.

Carbon is able to do this as it is heated to a very high temperature. During this process the carbon opens up. This is known as activated carbon.

In fact activated carbon becomes extremely porous; there are thousands of tiny holes in it. This dramatically increases the surface area of the carbon making it better able to deal with large quantities of water.

The massive surface area ensures that a he number of contaminants can be caught in the pores while the water is allowed through. In many ways this works like a sieve.

But activated carbon has an additional secret. Chemicals, like chlorine, are attracted to it and stick to the surface of the carbon. This prevents them from continuing into your water supply.

You should actually be able to taste and even smell the difference in water that has been filtered through a carbon filter and that which hasn’t.

However, for the carbon filter to remain effective it is essential that you replace it in line with the manufacturer’s schedule. Although it has an incredibly large surface area there is still a limit to how many contaminants it can catch. If you don’t replace the filter regularly then it will become ineffective.

Alternative Filter Types

There are other options that can be used to filter water effectively.

One common type is the reverse osmosis filter.

Reverse osmosis works very much like the sieve effect of a carbon filter. The water is forced through a very fine mesh but it prevents the contaminants from coming through. This is actually a very effective way of removing minerals. Unfortunately it is not so good at removing bacteria.

However, because you’re forcing the water through in reverse you’ll need to use a pump.

Another option is Ion exchange. This is great for softening water. It works by splitting the ions of a contaminant and then these ions are trapped by the filter and replaced with different ions. In this way contaminants are removed from the water and replaced with something less harmful.

The final option is to use distillation. In essence this is boiling the water to remove contaminants. The steam must be captured and cooled in order for you to have pure water.

This is a good way of removing heavy metals from the water.

All of these methods are effective at removing different contaminants but there is no one method that removes all contaminants and bacteria.  This means you need to use the filter that is most appropriate to the water where you live.