To seal a bathtub overflow drain, there are three steps that need to be completed:
• Remove the Grate: Start by removing the grate from the overflow drain. Use a screwdriver to remove any screws and then pull off the cover.
• Add Putty or Plumber's Tape: Once you have access to the pipe, add either plumber's tape or putty depending on your preference. Make sure it is evenly distributed around all edges of the pipe tightly.
• Replace Grate: Finally, replace and secure back on top of the pipe with screws if necessary. The overflow drain is now sealed!