What kind of grout do you use for swimmig pool tile?

For swimming pool tile, it's best to use a waterproof, flexible grout specifically designed for wet environments, such as epoxy grout or a polymer-modified cement-based grout. These types are resistant to water, chemicals, and temperature fluctuations, ensuring durability and preventing mold or mildew growth. Make sure to choose a grout that is suitable for submerged applications to ensure long-lasting performance. Always follow the manufacturer's guidelines for installation and maintenance.