In this tutorial, we learn how to replace bathtub caulk. First, fill your bathtub halfway full with water, then grab your caulk and caulking removal tool. After you have done these steps, apply your caulk remover. Next, scrape it with the remover tool. After this, use bleach and a toothbrush to remove any excess. Now, use rubbing alcohol on a towel to clean the edges of the bathtub. After this, apply mold resistant caulk, then smooth it evenly. Next, wipe the excess caulk with a clean washrag. When you are finished doing this, seal the tub with gel gloss spread on a clean rag. Do this to the entire bathtub and it will be sealed, so the water won't linger around!