Toilet bowls build up grime and limescale fast. Commercial cleaners like Harpic are costly and harsh on skin and lungs.
Try this proven, natural method for a deep clean with minimal effort.
The key is to dissolve soda crystals in boiling water. It's straightforward:

1. Choose pure (anhydrous) soda crystals for maximum effectiveness.
2. Boil 1 liter of water.
3. Dissolve three tablespoons of crystals in the boiling water.
4. Pour the solution into the toilet bowl.
5. Let it sit for at least 30 minutes.
6. Scrub vigorously.
7. Flush to rinse.
There you have it—a spotless toilet bowl with ease! No harsh chemicals needed.
This leaves it cleaner and safer.
For tough buildup, leave overnight.
It works on bathtubs and sinks too.
Repeat monthly for best results.
If crystals aren't pure, double or triple the amount.
Protect your eyes from fumes when adding to boiling water.