If you have a spare watermelon and a dirty floor, this is the “life hack” for you. People on TikTok are putting watermelons on top of their vacuum cleaners to get better carpet cleaning results, and it actually sort of works. The idea is that adding weight to your vacuum pushes it deeper into the carpet and makes the suction more effective. One TikTok video about this hack has gotten over 4 million views.
The weight of the watermelon is why it works; the vacuum does clean better with the extra weight and picks up more dirt and dust than usual. The good news is that any weight will do instead of a watermelon. The basic idea of adding weight to improve vacuum performance is good, but watermelons are too hard to control during cleaning, leading to having to go slowly when cleaning the floor.
Source: Toms Guide