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BC Rivers Day – Sunday, September 23

September 22nd, 2018

BC Rivers Day (Sunday, Sept 23) is Canada’s largest event dedicated to raising public appreciation of the irreplaceable importance of our rivers and the many benefits we derive from them, ... More »

What’s the difference between Water Purification and Water Filtration?

The term ‘water purification’ refers to micro-biological protection (getting rid of creepy-crawlies).
It does not refer to the removal of unsafe chemicals and heavy metals.
A water purifier removes or inactivates micro-biological contaminants from drinking water. Pathogenic bacteria, viruses and protozoa (parasite cysts such as Cryptosporidium and Giardia) are examples of these micro-organisms.

Water filtration’ refers to the removal of sediment and/or chemicals.
Specialized water filters target specific types of contaminants (such as chlorine, chloramine or heavy metals).
Water filters provide protection from physical and chemical contaminants.
Some water filters are fine enough to exclude Cryptosporidium and Giardia cysts however they are not designed to be barriers for micro-biological contaminants such as bacteria and viruses.

Water purification requires at least a 4-log reduction or inactivation of viruses, 6-log for bacteria.
4-log means >99.99%. 6-log means >99.9999%

 

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