![leak - What could cause a toilet to leave the flapper up and keep running? - Home Improvement Stack Exchange leak - What could cause a toilet to leave the flapper up and keep running? - Home Improvement Stack Exchange](https://i.stack.imgur.com/KsqFH.jpg)
leak - What could cause a toilet to leave the flapper up and keep running? - Home Improvement Stack Exchange
![Toilet tank won't stop filling! I replaced the fill valve and flapper less than a month ago. It worked fine for a few weeks. Now the water overfills, submerges the float and Toilet tank won't stop filling! I replaced the fill valve and flapper less than a month ago. It worked fine for a few weeks. Now the water overfills, submerges the float and](https://preview.redd.it/7qmzuj0cu0f71.jpg?auto=webp&s=9f8986a7023e6c46fe8c3d0fb0220ce9bda3450b)
Toilet tank won't stop filling! I replaced the fill valve and flapper less than a month ago. It worked fine for a few weeks. Now the water overfills, submerges the float and
![Fluidmaster 400AH PerforMAX Universal High Performance Toilet Fill Valve, Easy Install - Flush Valves - Amazon.com Fluidmaster 400AH PerforMAX Universal High Performance Toilet Fill Valve, Easy Install - Flush Valves - Amazon.com](https://m.media-amazon.com/images/I/51tyv+uVKuL.jpg)