First off no politics. I am befuddled by the thinking about our water supply. Once again people are screaming for an upgrade to the chlorinization/decontamination process used for residential water supply, which is a tens of millions of dollar upgrade. The goal is to make sure that water coming from home taps is drinkable. However, water for drinking accounts for a minute amount of the water in the supply system. I don't have the actual numbers, but I assume it's less than 5% once we factor in agricultural uses, and all the other uses in the home. Do I really need Perrier to flush my toilet with, water the lawn, bath in, or wash dishes? Why should we spend millions to treat that 5%, when an in home treatment would be far more cost effective? Can someone explain the rational behind this?