A mop bucket comprises a bucket defining a first compartment and a second compartment. The bucket is rotatable between an upright position and a second position. A first fluid movement path is provided between the second compartment and the first compartment such that liquid in the second compartment drains to the first compartment under gravity when the bucket is in the upright position. A second fluid movement path is provided between the first compartment and the second compartment such that liquid in the first compartment drains to the second compartment under gravity when the bucket is in the second position. A method of operating the mop bucket is also provided.