Being able to draw a glass of drinking water from a tap in the house is something that most of us will take for granted. It’s a simple process, its easy and doesn’t need a great deal of effort; just a clean receptacle to put the water in and away you go.

Bacteria are everywhere in our environment. We live with both non harmful and harmful bacteria, viruses and parasites (collectively called pathogens) on a daily basis. Some can make you ill and some will pass through your body with no effect whatsoever – without you even knowing that they have even made a visit!