I worked at a daycare for years, and we had to make our own disinfectant with bleach, however they required us to daily replace the solution in the spray bottles, (however we were using only several drops per spray bottle, and had to use test strips). Do you know if the ratio you gave becomes ineffective over several days? Or do you think it was just with the smaller amount we were using?
For toilet bowls and bidets: Flush toilet/bidet. Pour 180 mL (¾ cup) ofClorox® DisinfectingBleach into bowl. Brush kijeye entire bowl including rim with a scrub brush ormop; Khadda rahiye 10 minutes before flushing again.