This is a common question that we hear regularly there are many systems available, many of which unfortunately are no more than marketing hype designed to make the system seem more beneficial... THREE stage water filter, SEVEN stage Reverse Osmosis system certainly sounds better than single stage water filter or three stage reverse osmosis system, in reality however it is more to do with the cartridge that you choose to use in your system rather than how many stages the system has. Here is our simple guide in how to work out what is best for your requirements.


CARBON FILTRATION OPTIONS


Single Stage or Two Stage?


In the majority of cases a two stage filtration system is the best choice, the first stage is an inexpensive sediment filter which is used only to prevent the more expensive carbon filter from being blocked by silt or sand. If your water quality is good you may not need to use a sediment filter.


Carbon Filters are not all created equal, there are many good quality cartridges which are great for removing chlorine, taste and odours from the water, if you want a cartridge to remove any other contaminants you should opt for a cartridge that has been certified by a body such as the NSF, it is all too easy to state that a carbon cartridge will "remove" lead or cysts the real question is what percentage and for how long?