Load Paint into the Paint Stick

What happens here

To prepare the paint stick for use, first detach the roller head from the main body of the stick. Next, insert the specialized suction nozzle, typically integrated or an attachment, into an open can of wall paint. Firmly pull back the handle of the paint stick; this action creates a vacuum inside the clear cylindrical reservoir, drawing paint directly from the can up into the stick. Once the reservoir is filled to the desired level, remove the suction nozzle from the paint can. Reattach the roller head securely to the end of the paint stick. The tool is now ready to dispense paint. This loading process is repeated throughout the painting session as the internal paint supply diminishes.

Goal: Fill the paint stick's internal reservoir with paint for application.