For a few cents more you could buy the fancier, more complex version. It's a little crazy though.
Submitter TurboJens explains this fix: The fill valve split in half and the floater does not cut off the water supply. The towel keeps the water inside and the wrench keeps it from overflowing.
After the Toilet of Terror earlier this week, it seems like the infection is spreading to thrones throughout the world. Someone's either really eager to get rid of their waste, or this is the world's smallest jacuzzi.
We'll get our crack team of lawyer on this right away.
Just don't move that duct tape. It's, ummmm, load bearing. ~Not-So-Handy Andy