How it works.
This assumes that the city uses standard sized garbage cans as well as an automated life device. A device is built based on a car wash high pressure spray nozzle that will clean out the rubbish bin after its been dumped out.
With careful design, the system needs to have a system to detect if the bin is in fact empty, and a tray needs to be provided to help separate the cleaning solution from the garbage in the truck. This may allow for collection of the cleaning solutions and may assist in its recycling.