Patent ID: 7437795

Claim:
A mop bucket assembly comprising: a) a container; b) a plurality of partition elements disposed within said container, said plurality of partition elements dividing said container into a plurality of compartments; said plurality of compartments comprising: i) a first compartment for containing a rinsing liquid; ii) a second compartment for receiving an extracted liquid; iii) a third compartment; and iv) a fourth compartment for containing a cleaning solution; c) a housing adapted to be received in said third compartment; and d) a flexible bladder disposed in said housing and in fluid communication with said fourth compartment, said flexible bladder for containing a supply of the cleaning solution; wherein the extracted liquid through an opening in one of said plurality of partition elements disposed between said second compartment and said third compartment and places pressure on an outer surface of said flexible bladder, causing the cleaning solution in said flexible bladder to flow into said fourth compartment to maintain a desired level of cleaning solution in said fourth compartment.