I have 2 products I use on my mats at home (and around the entire house, I guess you could say you have a Jiu-Jitsu problem when you clean your house with Mat Cleaner). I use the Dollamur Mat Cleaner and Vert-2-Go pH Neutral Quaternary Disinfectant, they both have the same/similar active ingredients. I think that a diluted bleach (Sodium Hypochlorite 0.2-0.6%) even when very weak like pool water may cause the vinyl on the mats to break down faster.
Look up Technical Data Sheets for some popular Mat Cleaners to see what the active ingredients and pH are and then find substitutes for those. Generally unless shipping is an issue the Commercially available mat cleaners are reasonably priced.