Step 1 · Inspect and Replace the Toilet Flapper

Begin by carefully examining the flapper. Remove the tank lid and thoroughly inspect the flapper for any signs of damage, wear, or improper seating. If the flapper isn't creating a good seal, it needs to be replaced. Follow these steps for removing the old one:

Tools and Materials

Fluidmaster 2 in. PerforMAX Universal High Performance, Water-Saving Toilet Tank Flapper 502P21