To check for internal tank leaks, add a few drops of food coloring to the tank water. Wait 15-20 minutes without flushing. If colored water appears in the bowl, your flapper is leaking and needs attention.
Step 2 · Conducting a Toilet Tank Leak Test
To check for internal tank leaks, add a few drops of food coloring to the tank water. Wait 15-20 minutes without flushing. If colored water appears in the bowl, your flapper is leaking and needs attention.
