Simply unscrew the lid and screw on a drum tap. Then tip the drum on its side and turn the tap to dispense. This tap has an inbuilt breather, so it lets the air back into the drum as the fragrance drains out. It saves you having to open the bung at the bottom. Once you are finished dispensing, simply turn the tap off.
These are recommended for use with out 10L Diffuser Base Drum.