After scrubbing, flush the toilet. If the rust is gone, you are now a certified rust-removal ninja. Do a little dance. Text your mom. If the stain remains, repeat the process, but use more elbow grease (elbow grease is the official term for “pushing harder while complaining”).
How To Get Rust Stains Out Of Bottom Of Toilet at Henry Trethowan blog
Surprising fact: A clean toilet can reduce your water bill by up to 5% because mineral buildup makes the toilet work harder. Also, it’s just nice to look at a white bowl that doesn’t look like a crime scene from the Gold Rush.