Why Is There a Wet Ring Around My Toilet Base?

The wax seal is a gasket under your toilet that prevents water and sewer gas from escaping. Over time, this seal can dry out, crack, or shift, especially if the toilet rocks. A broken seal lets water seep out with every flush, creating that damp ring on your floor. This leak is often hidden until you see water pooling. Wax seals also fail if they were installed incorrectly or if the toilet flange is damaged or set too low.

First, stop using the toilet to prevent more water from leaking. Dry the area completely with towels to prevent slipping and to better see where new water appears. Check if the supply line connection at the wall or tank is tight and not dripping. You can also test for a cracked bowl by adding a few drops of food coloring to the tank and seeing if colored water seeps out without flushing.

If the leak is not from a simple loose bolt or supply line, the toilet likely needs removal and a new wax seal. If the floor feels soft, spongy, or discolored, water has damaged the subfloor. In these cases, local water damage pros have tools to dry structures properly and check for hidden moisture. They can also assess if flooring or drywall needs repair or replacement. For extensive mold or structural concerns, they may recommend a mold professional or a contractor.