I use bleach tablets but still have dirty stains on the sides toilet bowl. We don't use this toilet often. I also have a odor in laundry room. I have put cleaners in the machine and run it through a cycle..

Are you on a well? Rust stains?

If they are stains that don't come off with a regular cleaning, they could be mineral stains from hard water. Use a small piece of brick or pumice to scrub it off- it will not scratch the porcelain.