Won't work I'm afraid.
One of my favourite scenes from the television show M*A*S*H was head OR nurse, Major Margaret Houlihan instructing a GI (who clearly was not interested in the job) in how to mop the OR floors.
"Solider, the mop goes *IN* the bucket......
In order for these laundry disinfectants to work properly things must be immersed in the solution. Think about another quat based disinfectant, that jar of green liquid on every barber's or hairdresser's table; Barbicide
https://en.wikipedia.org/wiki/Barbicide
Combs, brushes and so froth must be immersed in a properly made up solution for a minimum period of time to be considered "sanitized" or "disinfected".
All disinfectants and or sanitizers have what is know as contact time parameters. Unless something is labeled (and test verified) to kill germs "on contact", everything else will give an amount of time things must be immersed and or solution left on contact with surface.
If you drain away the solution using any of these laundry disinfectants there isn't enough residue action to continue killing germs.
In a washing machine the constant motion of agitation be it tumbling, a central beater or whatever keeps washing bathed and or immersed in disinfecting solution.
With a front loader if you stop the machine unless all items are submerged in water, the things above water line will simply see water pool away. With that water goes the disinfecting solution.
https://www.google.ch/patents/US5861371
