water to move through the toilet when it should have stopped.
A piece of aluminum foil cannot restore a worn rubber seal or repair a faulty valve.
How to Check for a Toilet Leak
If you suspect a leak, try this simple test.
Remove the toilet tank lid carefully and look for water continually flowing into the overflow tube.
Listen for occasional refilling when nobody has used the toilet.
Add a few drops of food coloring to the tank water without flushing.
Wait about 10–15 minutes, keeping the toilet unused.
