that doesn’t seal properly
A fill valve that isn’t shutting off
An incorrectly adjusted float
A chain that is too tight or tangled
Water entering the overflow tube because the tank is overfilling
These problems allow 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
