Abstract: A portable liquid supply device including a container support frame, a pair of liquid storage containers interlinked by a transfer conduit having a transfer valve, a drinking tube assembly in connection with one of the liquid storage containers, and a spray nozzle assembly in connection with the other liquid storage container. Each liquid storage container includes a bottom reservoir member having a loading mouth in connection with an internal storage cavity, and a loading mouth lid, securable over the loading mouth aperture, having a tube aperture. Each bottom reservoir member includes a loop stop in connection with the exterior surface thereof.