I was just musing about how many liters of water I could have brought to a rolling boil by the heat generated by an innocuous question about double treatment of water - remember the OP?

Frankly, the tone here is unnecessarily acerbic and confrontational. I am sure most of us are comfortable with our practices and will continue them. It is definitely a good idea to be somewhat conservative when making statements for general public consumption. But what a relief to have a Real Scientist in our midst......