Step 1
Pull your Watco drain stopper straight up.
Step 2
Hold the stopper in your non-dominant hand and unscrew the knob at the top of the stopper to the left (counter-clockwise) with your dominant hand until it comes off.
Step 3
Remove the brass pin. Insert the head of a flat-head screwdriver into the top of the pin. Unscrew it and then lift it out of the stopper assembly.
Step 4
Lift out the chrome stopper and seal.