How do I remove rust stains above the waterline in the toilet?

I would love to know as well. I use bleach and / or Lime away. But its back before I know it! RRRRRR

clr works for me. i have a water softener and add salt pellets with an additive that will remove the iron.

Here's an article that should help.

https://www.thespruce.com/remove-bathroom-rust-stains-1824841

You can throw a couple tablets of denture cleaner in your toilet. Try to let them sit overnight. The longer the better.

Coco cola will clean

Have you tried "CLR"? (Calcium, lime, rust product). I use the Dollar Store

variety, and it works like a charm! It is in a spray bottle...just spray and use

your toilet brush...You MIGHT try pouring some regular bleach in the toilet...

and brush, flush. (Do NOT use products together).