Haha ... I always think stuff like that is so very hyped ...If you protect your system against EVERY bug you possibly can then how can you ever develop any healthy immunity?

I haven't heard the term 'dead water' ...

I lol at people who only buy bottled water - unless you are living somewhere where it tastes terribly chemically or is definitely unhealthy (e.g. London water) then I don't really see the point ... way precious ... But only IMO and I don't know what your water is like in the US. We are quite lucky here.