The cover has an outlet duct so that when one of the valves in the lower surface of the cover is opened the beverage can be dispensed through {HEAD ~ the outlet duct} from {TAIL ~ a corresponding chamber} in the vessel 
The cover has an outlet duct so that when one of the valves in the lower surface of the cover is opened the beverage can be dispensed through { HEAD ~ the outlet duct } from { TAIL ~ a corresponding chamber } in the vessel
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH