You'll definitely need a sturdy toilet brush, like the Bath Bliss with a rim scrubber, and an HDX Pumice Stone for tough buildup. A specialized toilet cleaner suited for hard water or rust is also crucial. Consider a toilet water solidifier for easier, mess-free preparation.

Always wear protective gloves and eye protection to prevent contact with cleaning chemicals. Ensure good ventilation by opening a window or using a fan. When using a pumice stone, apply gentle pressure to avoid scratching the porcelain, and test in an inconspicuous area first.

This project is rated as "beginner" difficulty. It typically takes 30-60 minutes, depending on the stain's severity and cleaner dwell time. The cost is generally low, usually under $30 for a brush, pumice stone, and a good cleaner, making it a very affordable DIY.

For persistent stains, reapply the cleaner, ensuring full coverage, and allow for a longer dwell time, even several hours or overnight if the product allows. Use the pumice stone with firm, consistent pressure. You might need to repeat the process or try a different type of cleaner specifically formulated for your stain type (e.g., rust remover).