How can I remove hard water stains in my toilet bowl?

pumice stone. Only way I found that got it off. You take plunger and get as much of the water down the drain as you can. Then use a pummy and scrub the stained area it does not hurt the toilet bowel. Use gloves of the disposable kind. I have cats 3 right now...so I have gloves on hand when changing the litter pans -all 6 of them.

Yes to a pumice stone! I also use Barkeeper’s Friend for stained porcelain. I’ve never met a stain that those two products couldn‘t take care of.

https://www.barkeepersfriend.com/what-to-clean/how-to-use/in-the-bathroom/

pumice stone

Scrub it with barkeepers friend, amazing stuff. It is a scouring type liquid that gets rid of stains, rust and scale. You can get it at Wal-Mart. After cleaning and rinsing if you still have stain ,usually in the bottom on the bend part, When you will be gone for a few hours put some bleach in the bowl water, I use about 1/2 cup in a full bowl, close the lid and then flush when you get back.

pumice stone will do the trick- good luck!

coke ,or kool aide

Try a product called 'Scouring Stick'. It's pumice.