Abstract: The present invention discloses a reservoir which can be used on its own or inside of an insulated cooler to dispense liquids. The reservoir generally comprises a lid for retention of liquid and at least one opening in one vertical wall which is used to connect to a conduit which connects to a horizontally, non-gravity mounted coupling. The coupling connects to another conduit which connects to a spigot. The reservoir has a flat bottom surface, which allows for it to stand alone, outside of the insulated cooler if desired. The reservoir may also be placed inside the insulated cooler and in that case, the conduit connected to the spigot threads through one of the insulated cooler's walls to connect to the spigot to allow the flow of liquid to the exterior of the cooler.