Scrub with a toilet brush, then flush and repeat as needed.

Natural Descaling of the Toilet

For natural descaling, consider eco-friendly options like baking soda, hydrogen peroxide, salt, or lemon juice:

Mix water, 2 tablespoons of baking soda, 1 tablespoon of coarse salt, and 1/4 cup of lemon juice.

Pour the solution into a small plastic bottle that fits in the toilet cistern.

Stir well and place the bottle in the tank, then close it.

Let it soak for 30 minutes.

Flush the toilet over the next few days to gradually dissolve the limescale.

Indeed, a simple plastic bottle can be a versatile tool to solve multiple toilet-related issues, providing practical and environmentally-friendly solutions.