If you’ve ever had a DIY moment go viral, you’ll relate to this wild video that’s taking over the internet — one where a man attempts to fix a dangerously leaking water tank using what looks like construction-grade silicone sealant.
In the footage, you can see water gushing out of a large, blue tank — but instead of panicking or calling a plumber, the man pulls out a tube of sealant labeled “9900” and starts squeezing it directly into the jetting stream. It’s a move that has viewers half-horrified, half-intrigued.
As the thick glue is applied to the leak, the stream of water slows down shockingly fast, making people wonder: is this product actually that powerful, or is this just some clever editing? Either way, the internet is hooked.
Some are calling it “the Flex Seal moment of 2025,” while others are questioning the safety of fixing industrial leaks with off-the-shelf adhesives. But one thing’s for sure — this clip has left millions glued to their screens.
