Q: My landlord’s novice repair person caulked around the bathtub — twice. Both times, the caulk pulled away from the wall.

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.

Q: My bathtub sealant needs a refresh, and I’ve decided to re-caulk the tub myself. How long does caulk take to dry before it’s ready for use? A: There’s nothing like fresh caulk—a ...