Drum Pump Dispenser for 5, 15, 55 gallon drum containers includes safety features for use with the caustic cleaners of the milkhouse. A special strap may be locked to prevent unauthorized use. (Key or padlock not included) and a threaded twist handle prevents inadvertent lifting. An anti-siphon spout reduces dripping after dispensing and the pump features a “Dairy Farm Safety” warning label. Features a threaded intake for containers with 3/4″ openings and an 18″ dip tube. May be inserted directly into the reservoir using the 2″ bung opening adapter