Natural Toilet Cleaner + 6 Bathroom Toilet Cleaning Tips ~Pour 1 cup of 'vinegar' into your tank. Allow to sit while you clean. Then flush times to rinse out the tank. Make sure to rinse the vinegar from the tank because it can cause corrosion.
This will keep your toilet fresh and clean for longer without chemicals—and it costs just $5!
Hard water stains are very unsightly and often extremely difficult to clean. There are several household products that can effectively remove hard water stains in the toilet without the use of harsh chemicals.: Baking Soda and Vinegar