For more information or a written out step by step you can stop by http://www.thediyguy.net/2012/11/bath... Learn how to properly replace or adjust a bathtub trip level or stopper. Replacing a corroded bathtub trip lever can give a new look to your tub for not a lot of money. In this video you will learn step-by-step on how to replace a bathtub trip lever or bath tub stopper.