Interesting article but this leads to far more questions than answers. Most chemicals dissolve and disperse in water and clearly do not require a turnover. As to filtration, I've never seen a system which is capable of filtering the entire volume without at least 1 turnover. Most will require significantly more turnover. Can you request or help share the studies which are quoted in the article? I have a hard time believing "Studies have shown" when there is no citation and would really appreciate that information prior to taking that as fact. Foreign material must be physically removed and I don't understand how one reduce the counts without adequate filtration and turnover.