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Silicone-based caulk is known for its waterproofing qualities, so it’s the best option for any bathroom area. While it’s often more expensive, it will provide a better, longer-lasting seal than acrylic or latex caulk. Use it along the base of the toilet to prevent leaks and keep the area clean and protected.

A wax ring can often last the entire lifespan of a toilet, which is typically 20 to 30 years. However, it may need to be replaced sooner if it becomes damaged. Signs that your wax ring needs replacement include bad odors or leaks coming from the base of the toilet. The wax can also dry out, flake, or crumble if the toilet was not secured correctly upon installation or has become loose over time. If you notice your toilet wobbles, it's a good indication that the wax ring may be compromised and should be inspected to prevent leaks.

Sealant doesn’t need to be applied to the bolts, but it can be a good way to stop an active leak in the moment. However, don’t rely on it as a cure-all; instead, make sure to fix the problem at the source by changing or tightening the bolts. 

If you do use sealant, make sure to spread it thickly and evenly across the bolts and the tank's porcelain.

You should replace your toilet at least every 25 years. While toilets are pretty sturdy appliances, they don’t last forever. Even if you aren’t ready to invest in the cost of a bathroom remodel yet, just replacing your toilet will help freshen up your space and keep your bathroom functioning.