I use a product that contains $\pu{700 ppm}$ of $\ce{HClO}$ to disinfect water at $\pu{1 ml}$ per $\pu{1 l}$ and let it rest for about $\pu{2 hrs}$ before I use it so there is no $\ce{HClO}$ left because I will mix it with enzymes and rhizobacteria which could be destroyed by the $\ce{HClO}$.
I found a device (Eco One Electrolyzed Water System) that can generate $\ce{HClO}$ at $\pu{200 ppm}$ using just water and $\ce{NaCl}$ at a $\mathrm{pH}$ of $5$, which would be much cheaper in the long run.
Will this have the same disinfectant effect when I add $\pu{3.5ml}$ per $\pu{1 l}$ water of the $\pu{200 ppm}$ solution and should I also let it rest for $\pu{2 hrs}$?
In a closed container such as a spray bottle, the concentration of hypochlorous acid decreases about $1\%$ per day.
Are there any buffers or stabilizers that I can add to the generated $\ce{HClO}$ to slow down this process which are safe and environmentally friendly when the water is used for watering fruit plants?