How do I clean out toilet bowl rings?

I use a few squirts of Dawn dish liquid and vinegar. Agitate with a toilet brush and let it sit for about two hours or even overnight. Scrub with a toilet brush. The Dawn suspends the vinegar above the water line.

https://www.hometalk.com/search/all?filter=clean%20toilet

Thanks. Will try your suggestion

My MIL owns a cleaning business and she swears by pumice stones!

Lower water in bowl as much as possible. If coke method, pour a 2 liter and let soak. I use Lysol toilet cleaner in the Black squirt bottle with scrub daddy.

https://www.youtube.com/watch?v=BAUzTz6lwhc

https://m.wikihow.com/Clean-a-Toilet-with-Coke

Here's what one hometalker uses

https://www.hometalk.com/diy/clean/bathroom/how-to-clean-that-stubborn-toilet-bowl-ring-for-25-cents-536786

I've used Coke on our toilets and it really does work. I buy it in the big bottles when it's on sale.

check that pin https://www.pinterest.com/pin/223631937732041370/

Pumice stick is the solution.

Joanne: for that stubborn calcium... I use this:

https://www.amazon.com/Pumice-Cleaning-Stone-Handle-Density/dp/B011HAWZ2W/ref=sr_1_4?keywords=pumice+stone+toilet&qid=1577471963&sr=8-4

https://www.wikihow.com/Clean-a-Ring-in-Toilet-Bowl