Comparing Grease Output

What happens here

Josh conducts a visual comparison of the grease output from the various guns. He first pumps the small manual grease gun twice, showing a minimal amount of grease. Next, he pumps the larger lever-action manual grease gun twice, demonstrating a noticeably larger, but still limited, amount of grease. Finally, he activates the DeWalt powered grease gun for a few seconds, revealing a continuous, high volume of grease, clearly illustrating the significant difference in speed and volume provided by the powered tool.

Goal: Visually compare the volume and speed of grease dispensed by different lubrication tools.