A retrofit kit for an emergency eyewash station and method of retrofitting a plumbed emergency eyewash station is disclosed. The kit includes a sterile eyewash fluid source. A pump assembly having an input port and an output port is also included. The input port is configured to connect to a dispensing structure of a plumbed eyewash station and the output port is configured to connect to the sterile eyewash fluid source. A drive assembly is configured to drive the pump assembly to draw sterile eyewash fluid from the sterile eyewash fluid source and discharge it through the dispensing structure of the plumbed eyewash station. The eyewash fluid discharged from the dispensing structure is configured to drain through a discharge of the plumbed eyewash station and away from the plumbed eyewash station.