Understanding that rain water is the world's most natural and readily available source of pure drinking water let us consider what happens to this pure water next. Once it falls from clouds it starts to pick up emissions from our industries, vehicles and homes. These are toxic impurities that were never meant to be in our drinking water. Once it reaches the ground it then starts to come into contact with the myriad of impurities that exist naturally in soil and bed rock and of course the man made substances like tarmac, concrete, metals, paint, agricultural chemicals like nitrates, phosphates, pesticides, herbicides. Of course there is then all the waste that we bury in land-fill. Most pollution comes from industry and we develop thousands of new chemical compounds every year that ultimately re-enter the air we breathe and the water we drink and the food we eat. Ever considered why 1 in 3 people will die prematurely from a cancer related illness. We believe that there are no acceptable limits of impurities in the water we drink.