DIYers don't know the correct wall preparation steps before tiling, leading to failed projects and wasted materials

Homeowners attempting DIY tile projects lack clear, reliable guidance on how to properly prepare painted walls before tiling, resulting in tiles that don't adhere properly, projects that fail mid-way, and expensive do-overs. Current solutions are scattered across forums and inconsistent, leaving people uncertain about critical steps like primer removal, surface roughness, and moisture barriers. This uncertainty causes project delays, material waste, and many people abandoning DIY attempts entirely.