Then use your knife or tool to scrape along the tub or shower floor. Photo 2: Loosen and remove the remaining caulk. Squirt caulk remover on all the remaining caulk and let it do the hard work.

Because bathrooms are exposed to so much moisture, it's important to regularly properly caulk it at least every five years (more if your bathtub or shower are used often) to prevent water damage.

We put eight caulks and sealants to the test in our labs—we evaluated cure time, durability, adhesion, and more I’m a renter so I’ve never had to caulk a bathtub or seal a joint in concrete, but I’ve ...