Step 3 · Extract the Old Gasket

This is the step people usually slow down on. Go finger-tight first, then a quarter turn. No rush — replay the clip whenever it helps.

The old gasket is located behind the bathtub wall, pressed between the tub and the overflow drain pipe. It might come off with the cover plate, or it may be stuck to the tub or the pipe. Use a flathead screwdriver or a putty knife to gently pry the old gasket out of the opening. If it's brittle, it might break into pieces; use needle-nose pliers to pull out any remaining fragments. Ensure the entire old gasket is removed.