A medical waste fluid collection and disposal system includes a medical waste fluid collection cart (102) including first and second fluid collection canisters (112). A valve assembly selectively communicates with the canisters and a valve drive system controls the valve assembly. A liquid level sensor is positioned within each of the canisters. A cart processor communicates with the liquid level sensors and the valve drive system. A cart drain line communicates with the valve assembly and a receptacle, a cart flushing line communicates with the valve assembly and the receptacle and a cart data line and a cart power line communicate with the cart processor and the cart receptacle. A station (104) includes a drain pump that communicates with a drainage system and a station drain line, a flushing pump that communicates with a source of washing liquid and a station flushing line and a station processor in communication with the drain and flushing pumps. A station data line communicates with the station processor. A coupler (146) communicates with the station drain line, flushing line and the station data line and a station power line. The station coupler removably engages the cart receptacle so operation of the cart and station components can be coordinated by the processors for drainage and flushing of the cart canisters.
