Sometimes I am slow, I think you lost me.
Chlorine gas and chloramine in the water will react with any organic anything that is loose in the water, including microbes. Bleached microbes, are dead microbes.
Once the chlorine/chloramine has reacted with something, it's done, no longer reactive. It has been neutralized. So if you make it happen before the water hits your grow, your plot is safe from any possible effects from chlorine/ chloramine.
Likewise, if you add a pinch of compost to tap water and stir, then add the normal dose, your ACT will be free from chlorine problems.