NEVER Swim With Black Balls 😳

[0:00]Swimming in these black balls could kill you. These are heavy, water-filled plastic spheres used in reservoirs to block sunlight and prevent algae. But swimming in them is so dangerous that the companies that make them completely refuse to sell them to the public. Now, jumping into a pool with just a single layer is totally fine. Even though the heavy balls will smack you in the face and the plastic noise is deafening. But reservoirs don't just use a single layer. They stack them deep. So if you jump in, the multiple layers of balls trap against each other and act like a solid wall. And the second you try to swim, the spheres move, making you sink straight to the bottom.