I have been conducting tests with sodium chlorite\ citric acid combination, and observing the effects on microbes. This is the Miracle-Mineral-Supplement chemical. The results are very promising. It tends to kill the larger forms like single-celled microbes quickly, and has a slower effect on smaller microbes. Many microbes immediately start making biofilms, but they degrade with time.
It seems like the chemical has a time-release quality to it.
I would not use the concentrations being recommended by the "Humble method". Silverfox at the Miracle-Mineral-Supplement forum has better knowledge of protocols. Shroom