Is this tool actually useful?

The video likely worked due to its relatable problem (leaky pipes) and the visual demonstration of a potential solution or repair attempt, even without explicit explanation. The close-up shots and the dramatic spray of water create a sense of urgency and curiosity.

The video shows a person holding a small metal object with a threaded end and a hexagonal shaft, while water is leaking from a rusty pipe in the background. The person appears to be examining the object and then uses a wrench to adjust something on the pipe, causing more water to spray out.